David's Astronomy Pages (Solar System)
 Comets - 2021

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2022		  
Comets Images (2021) Notes
Bullet 7P/Pons-Winnecke (Feb - Mar 2021)
Bullet 10P/Tempel (Nov 2021 - Jan 2022)
Bullet 15P/Finlay (Aug - Nov 2021)
Bullet 17P/Holmes (Aug 2021)
Bullet 67P/Churyumov-Gerasimenko (Sep 2021 - Feb 2022)
Bullet 132P/Helin-Roman-Alu (Nov 2021-Jan 2022)
Bullet 156P/Russell-LINEAR  (Nov 2020-Jan 2021)
Bullet 277P/LINEAR  (Jan 2021)
Bullet 398P/Boattini (Nov 2020-Apr 2021)
   
Bullet C/2017 K2 (PANSTARRS) (Nov 2021 - Feb 2022)
Bullet C/2019 L3 (ATLAS) (Sep 2020-Dec 2021)
Bullet C/2020 R4 (ATLAS) (Mar 2021)
Bullet C/2020 T2 (Palomar) (Feb - Apr 2021)
Bullet C/2021 A1 (Leonard) (Nov 2021)
   
   
- This page summarises observations and images of comets in  2021.
-  

 

7P/Pons-Winnecke - Feb to Mar 2021

7P/Pons-Winnecke
(passing through Serpens)
Sun Distance 1.74 AU (approaching)
Earth Distance 1.38 AU (207.1 million km)
Expected position of comet shown by white circle
No indication of comet		    7P/Pons-Winnecke - 2021-02-11, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 93.13 arcsec/hr, Dec -2.00 arcsec/hr)

No indication of comet
Image   Image
Annotated CCD Image (50% size, square root scale)
14 x 45s exposure (average combine), 3x3 binning, C Filter
2021-02-11 00:40 UT (#858133-47)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
14 x 45s exposure (average combine), 3x3 binning, C Filter
2021-02-11 00:40 UT (#858133-47)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
7P/Pons-Winnecke
(passing through Hercules)
Sun Distance 1.62 AU (approaching)
Earth Distance 1.16 AU (173.2 million km)
Expected position of comet shown by white circle		    7P/Pons-Winnecke - 2021-02-28, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 99.78 arcsec/hr, Dec -0.51 arcsec/hr)
Comet position is indicated by white circle.
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2021-02-28 04:09 UT (#865198-200)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
8 x 45s exposure (average combine), 3x3 binning, C Filter
2021-02-28 04:11 UT (#865198-206)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
7P/Pons-Winnecke
(passing through Ophiuchus)
Sun Distance 1.52 AU (approaching)
Earth Distance 0.99 AU (148.5 million km)
Expected position of comet shown by white circle
Poor quality image (uneven background due to passing cloud)		    7P/Pons-Winnecke - 2021-03-14, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 106.01 arcsec/hr, Dec -1.88 arcsec/hr)
Comet position is indicated by white circle.
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2021-03-14 04:37 UT (#869190-92)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
8 x 45s exposure (average combine), 3x3 binning, C Filter
2021-03-14 04:39 UT (#869190-97)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
7P/Pons-Winnecke
(passing through Serpens)
Sun Distance 1.44 AU (approaching)
Earth Distance 0.86 AU (128.6 million km)
Expected position of comet shown by white circle		    7P/Pons-Winnecke - 2021-03-27, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 112.61 arcsec/hr, Dec -6.87 arcsec/hr)
Comet is indicated by white cross-hairs.
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2021-03-27 03:21 UT (#876062-64)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
8 x 45s exposure (average combine), 3x3 binning, C Filter
2021-03-27 03:25 UT (#876062-76)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
7P/Pons-Winnecke
(passing through Serpens)
Sun Distance 1.42 AU (approaching)
Earth Distance 0.83 AU (124.0 million km)
Expected position of comet shown by white circle		    7P/Pons-Winnecke - 2021-03-30, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 114.49 arcsec/hr, Dec -8.63 arcsec/hr)
Comet is indicated by white cross-hairs.
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2021-03-30 03:41 UT (#877173-76)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
4 x 45s exposure (average combine), 3x3 binning, C Filter
2021-03-30 03:41 UT (#877173-77)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
     

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10P/Tempel - Nov 2021 to Jan 2022

10P/Tempel - Attempt
 (passing through Orion)
Sun Distance 2.24 AU
Earth Distance 1.76 AU (262.7 million km)
Expected position of comet shown by white circle
No indication of comet (too faint ?)		    10P/Tempel - Attempt 2021-09-22, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 12.75 arcsec/hr, Dec -7.96 arcsec/hr)

No indication of comet at its expected position.
Image   Image
Annotated CCD Image (50% size, square root scale)
7 x 45s exposure (average combine), 3x3 binning, C Filter
2021-09-22 04:09 UT (#915356-62)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   Annotated CCD Image (100% size, square root scale, cropped)
 Image details as left
     
10P/Tempel
 (passing through Taurus)
 Sun Distance 2.59 AU
Earth Distance 1.63 AU (244.4 million km)
Position of comet shown by white cross-hairs		    10P/Tempel - 2021-11-17, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra -41.89 arcsec/hr, Dec -1.19 arcsec/hr).
Image   Image
Annotated CCD Image (50% size, linear scale)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-11-17 00:46 UT (#934087-89)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   Annotated CCD Image (100% size, linear scale, cropped)
 Image details as left
     
10P/Tempel
 (passing through Taurus)
 Sun Distance 2.70 AU (receeding)
Earth Distance 1.75 AU (262.2 million km)
Position of comet shown by white cross-hairs		    10P/Tempel - 2021-12-05, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra -37.06 arcsec/hr, Dec 5.51 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-12-05 21:54 UT (#939120-22)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
 Image details as left
     
10P/Tempel
 (passing through Taurus)
 Sun Distance 2.73 AU (receeding)
Earth Distance 1.80 AU (269.4 million km)
Position of comet shown by white cross-hairs		    10P/Tempel - 2021-12-05, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra -33.53 arcsec/hr, Dec 7.17 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-12-10 20:59 UT (#940012-14)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
 Image details as left
     
10P/Tempel
 (passing through Taurus)
 Sun Distance 2.90 AU  (receeding)
Earth Distance 2.21 AU (331.2 million km)
Position of comet (very faint) is shown by white cross-hairs		    10P/Tempel - 2022-01-09, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra -5.35 arcsec/hr, Dec 13.94 arcsec/hr)
Position of comet (very faint) is shown by white cross-hairs
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2022-01-09 18:53 UT (#952053-55)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
 Image details as left
     
     

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15P/Finlay - Aug 2021

15P/Finlay
(passing through Gemini)
Sun Distance 1.16 AU
Earth Distance 1.39 AU (207.9 million km)
Comet position is shown by white cross-hairs
Comet is fainter than it's expected mag (+13.4)		    15P/Finlay - 2021-08-24, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 125.73 arcsec/hr, Dec 7.58 arcsec/hr)
Comet (very faint) shown by white cross-hairs
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 60s exposure (average combine), 3x3 binning, C Filter
2021-08-24 02:06 UT (#907071-73)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   Annotated CCD Image (100% size, square root scale, cropped)
Image details as left
     
15P/Finlay
(passing through Gemini)
Sun Distance 1.19 AU (receeding)
Earth Distance 1.41 AU (210.7 million km)
Comet position is shown by white cross-hairs		    15P/Finlay - 2021-08-28, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 120.55 arcsec/hr, Dec 4.80 arcsec/hr)
Comet (faint) shown by white cross-hairs
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 60s exposure (average combine), 3x3 binning, C Filter
2021-08-28 01:48 UT (#909160-62)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   Annotated CCD Image (100% size, square root scale, cropped)
 7 x 60s exposure (average combine), 3x3 binning, C Filter
2021-08-28 01:50 UT (#909160-67)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
15P/Finlay
(passing through Gemini)
Sun Distance 1.19 AU (receeding)
Earth Distance 1.41 AU (210.7 million km)
Comet position is shown by white cross-hairs		    15P/Finlay - 2021-11-17, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 9.91 arcsec/hr, Dec 7.56 arcsec/hr)
Comet (faint) shown by white cross-hairs,
best seen in negative image as a small fuzzy blob
Image   Image
Annotated CCD Image (50% size, square root scale)
9 x 60s exposure (average combine), 3x3 binning, C Filter
2021-11-17 04:24 UT (#934213-21)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   Annotated CCD Image (100% size, square root scale, cropped)
 9 x 60s exposure (average combine), 3x3 binning, C Filter
2021-11-17 04:24 UT (#934213-21)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     



  Image
    Negative CCD Image (100% size, square root scale, cropped)
 Image details as above
     

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17P/Holmes - Aug 2021

17P/Holmes
(passing through Auriga)
Sun Distance 2.50 AU
Earth Distance 2.60 AU (389.4 million km)
Comet position is shown by white cross-hairs
Note : Comet's current sun distance  (2.50 AU) is very similar
to the distance it had when it expoded in 2007 (2.54 AU)		    17P/Holmes - 2021-08-24, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 61.30 arcsec/hr, Dec 17.49 arcsec/hr)
Comet (very faint) shown by white cross-hairs
Comet is just visible and seems close to it's expected mag (+18.0)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 60s exposure (average combine), 3x3 binning, C Filter
2021-08-24 00:33 UT (#907035-37)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   Annotated CCD Image (100% size, square root scale, cropped)
6 x 60s exposure (average combine), 3x3 binning, C Filter
2021-08-24 00:34 UT (#907035-41)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
    Earlier images of 15P/Holmes on Comets 2007 Page >>

Earlier montage of images of Comet 17P/Holmes from 2007
(2007-10-25 to 2007-11-16)
Image 

CCD Image Montage (30% size)
2x2 binning, various exposures
Images from 2007-10-25 to 2007-11-16
[Larger Image,  50% size]
      

Earlier explosive eruption of Comet 17P/Holmes in 2007
Frames taken 2007-10-25 to 2007-10-30 showing rapidly expanding coma
 2007-10-25 (2.1 arc min diam) 
2007-10-29 (7.0 arc min diam)
2007-10-30 (9.3 arc min diam)
Sun Distance 2.54 AU, Earth Distance ?
Image
Animated CCD Images (Log Scale)
5 x 10s exposure (average combine), 2x2 binning, C Filter, 
Frame 1 : 2007-10-25 20:45h UT (#227055-59)
Frame 2 : 2007-10-29 04:43h UT (#228038-42)
Frame 3 : 2007-10-30 04:47h UT (#229035-39)
      

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67P/Churyumov-Gerasimenko - Sep 2021 to Feb 2022

67P/Churyumov-Gerasimenko
(passing through Taurus)
Sun Distance 1.31 AU
Earth Distance 0.55 AU (82.0 million km)		    67P/Churyumov-Gerasimenko - 2021-09-22, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 154.55 arcsec/hr, Dec 41.33 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2021-09-22 02:02 UT (#915247-49)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   Annotated CCD Image (100% size, square root scale, cropped)
 15 x 45s exposure (average combine), 3x3 binning, C Filter
2021-09-22 02:07 UT (#915247-61)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
67P/Churyumov-Gerasimenko
(passing through Gemini)
 Sun Distance 1.21 AU (approaching)
Earth Distance 0.42 AU (63.2 million km)		    67P/Churyumov-Gerasimenko - 2021-10-31, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 152.98 arcsec/hr, Dec 9.70 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2021-10-31 04:04 UT (#930231-34)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   Annotated CCD Image (100% size, log scale, cropped)
 13 x 45s exposure (average combine), 3x3 binning, C Filter
2021-10-31 04:01 UT (#930222-36)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
67P/Churyumov-Gerasimenko
(passing through Cancer)
 Sun Distance 1.23 AU (turning)
Earth Distance 0.42 AU (62.7 million km)		    67P/Churyumov-Gerasimenko - 2021-11-17, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 107.75 arcsec/hr, Dec 2.12 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2021-11-17 04:44 UT (#934227-29)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   Annotated CCD Image (100% size, log scale, cropped)
15 x 45s exposure (average combine), 3x3 binning, C Filter
2021-11-17 04:49 UT (#934227-41)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
67P/Churyumov-Gerasimenko
(passing through Cancer)
 Sun Distance 1.24 AU (turning)
Earth Distance 0.42 AU (63.1 million km)
Poor contrast due to close proximity to bright Moon		    67P/Churyumov-Gerasimenko - 2021-11-24, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 86.11 arcsec/hr, Dec 2.22 arcsec/hr)
Poor contrast due to close proximity to bright Moon
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2021-11-24 03:22 UT (#936246-48)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   Annotated CCD Image (100% size, log scale, cropped)
11 x 45s exposure (average combine), 3x3 binning, C Filter
2021-11-24 03:21 UT (#936240-53)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
67P/Churyumov-Gerasimenko
(passing through Cancer)
 Sun Distance 1.33 AU (receeding)
Earth Distance 0.45 AU (66.7 million km)		    67P/Churyumov-Gerasimenko - 2021-12-17, Detail
Comet's rate of motion
(Ra 107.75 arcsec/hr, Dec 2.12 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2021-12-17 01:04 UT (#942211-13)
12" LX200R (at f/10.4) + ST-10XME
Non-guided		   Annotated CCD Image (100% size, log scale, cropped)
12 x 45s exposure (average combine), 3x3 binning, C Filter
2021-12-17 01:09 UT (#942211-24)
12" LX200R (at f/10.4) + ST-10XME
Non-guided
     
67P/Churyumov-Gerasimenko
(passing through Cancer)
 Sun Distance 1.40 AU (receeding)
Earth Distance 0.47 AU (70.6 million km)
Poor contrast due to bright sky & poor sky/cloud		    67P/Churyumov-Gerasimenko - 2021-12-29, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra -17.51 arcsec/hr, Dec 9.03 arcsec/hr)
Poor contrast due to bright sky & poor sky/cloud
Image   Image
Annotated CCD Image (50% size, square root scale)
2 x 45s exposure (average combine), 3x3 binning, C Filter
2021-12-29 02:39 UT (#945170-71)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   Annotated CCD Image (100% size, log scale, cropped)
2 x 45s exposure (average combine), 3x3 binning, C Filter
2021-12-29 02:39 UT (#945170-71)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
67P/Churyumov-Gerasimenko
(passing through Cancer)
 Sun Distance 1.41 AU (receeding)
Earth Distance 0.47 AU (71.0 million km)		    67P/Churyumov-Gerasimenko - 2021-12-30, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra -19.52 arcsec/hr, Dec 8.91 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
45s exposure (single frame), 3x3 binning, C Filter
2021-12-30 01:25 UT (#946111)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   Annotated CCD Image (100% size, log scale, cropped)
45s exposure (single frame), 3x3 binning, C Filter
2021-12-30 01:25 UT (#946111)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
67P/Churyumov-Gerasimenko
(passing through Cancer)
 Sun Distance 1.42 AU (receeding)
Earth Distance 0.48 AU (72.3 million km)		    67P/Churyumov-Gerasimenko - 2022-01-01, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra -24.87 arcsec/hr, Dec 8.36 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2022-01-01 20:10 UT (#947056-58)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   Annotated CCD Image (100% size, log scale, cropped)
15 x 45s exposure (average combine), 3x3 binning, C Filter
2022-01-01 20:16 UT (#947056-70)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
67P/Churyumov-Gerasimenko
(passing through Cancer)
 Sun Distance 1.56 AU (receeding)
Earth Distance 0.58 AU (87.0 million km)		    67P/Churyumov-Gerasimenko - 2022-01-22, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra -37.17 arcsec/hr, Dec -1.37 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2022-01-22 02:51 UT (#957307-09)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   Annotated CCD Image (100% size, log scale, cropped)
15 x 45s exposure (average combine), 3x3 binning, C Filter
2022-01-22 02:56 UT (#957307-21)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
67P/Churyumov-Gerasimenko
(passing through Cancer)
 Sun Distance 1.61 AU (receeding)
Earth Distance 0.63 AU (94.4 million km)		    67P/Churyumov-Gerasimenko - 2022-01-28, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra -32.18 arcsec/hr, Dec -5.17 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2022-01-28 23:22 UT (#961025-27)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   Annotated CCD Image (100% size, log scale, cropped)
15 x 45s exposure (average combine), 3x3 binning, C Filter
2022-01-28 23:28 UT (#961025-39)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
67P/Churyumov-Gerasimenko
(passing through Cancer)
 Sun Distance 1.71 AU (receeding)
Earth Distance 0.75 AU (112.5 million km)		    67P/Churyumov-Gerasimenko - 2022-01-22, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra -15.43 arcsec/hr, Dec -10.87 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2022-02-11 02:35 UT (#969100-02)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   Annotated CCD Image (100% size, log scale, cropped)
15 x 45s exposure (average combine), 3x3 binning, C Filter
2022-02-11 02:40 UT (#969100-14)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
67P/Churyumov-Gerasimenko
(passing through Cancer)
 Sun Distance 1.66 AU (receeding)
Earth Distance 0.69 AU (103.5 million km)		    67P/Churyumov-Gerasimenko - 2022-02-04, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra -23.94 arcsec/hr, Dec -8.54 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2022-02-04 23:39 UT (#963129-31)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   Annotated CCD Image (100% size, log scale, cropped)
14 x 45s exposure (average combine), 3x3 binning, C Filter
2022-02-04 23:44 UT (#963129-43)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
67P/Churyumov-Gerasimenko
(passing through Cancer)
 Sun Distance 1.69 AU (receeding)
Earth Distance 0.73 AU (109.1 million km)		    67P/Churyumov-Gerasimenko - 2022-02-08, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra -18.55 arcsec/hr, Dec -10.10 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2022-02-08 21:50 UT (#967011-13)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   Annotated CCD Image (100% size, log scale, cropped)
15 x 45s exposure (average combine), 3x3 binning, C Filter
2022-02-08 21:55 UT (#967011-25)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
Goto Post-Dec Pictures
Later  Images of C/2019 L3 (ATLAS)
 on Comets 2022 Page >>		    
     

67P/Churyumov-Gerasimenko - False Colour Image(s) 
Inverse Spectrum
  
67P/Churyumov-Gerasimenko - 2021-09-22
Image
False Colour CCD Image (70% size, square root scale, cropped)
 15 x 45s exposure (average combine), 3x3 binning, C Filter
2021-09-22 02:07 UT (#915247-61)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
67P/Churyumov-Gerasimenko - 2021-10-31
Image
False Colour CCD Image (70% size, log scale)
 13 x 45s exposure (average combine), 3x3 binning, C Filter
2021-10-31 04:01 UT (#930222-36)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
67P/Churyumov-Gerasimenko - 2021-11-17
Image
False Colour CCD Image (70% size, log scale)
15 x 45s exposure (average combine), 3x3 binning, C Filter
2021-11-17 04:49 UT (#934227-41)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
67P/Churyumov-Gerasimenko - 2021-12-17
Image
False Colour CCD Image (70% size, log scale)
12 x 45s exposure (average combine), 3x3 binning, C Filter
2021-12-17 01:09 UT (#942211-24)
12" LX200R (at f/10.4) + ST-10XME
Non-guided
 
Goto Post-Dec Pictures
 Later  Images of C/2019 L3 (ATLAS)
on Comets 2022 Page >>
 

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132P/Helin-Roman-Alu - Nov 2021 to Jan 2022

132P/Helin-Roman-Alu
(passing through Cetus)
Sun Distance 1.70 AU (receeding)
Earth Distance 0.92 AU (137.0 million km)		    132P/Helin-Roman-Alu - 2021-11-24, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 41.50 arcsec/hr, Dec 14.19 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 60s exposure (average combine), 3x3 binning, C Filter
2021-11-24 19:29 UT (#937067-69)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
7 x 60s exposure (average combine), 3x3 binning, C Filter
2021-11-24 19:29 UT (#937065-71)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
132P/Helin-Roman-Alu
(passing through Cetus)
Sun Distance 1.71 AU (receeding)
Earth Distance 1.00 AU (149.7 million km)		    132P/Helin-Roman-Alu - 2021-12-05, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 51.49 arcsec/hr, Dec 20.68 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 60s exposure (average combine), 3x3 binning, C Filter
2021-12-05 21:14 UT (#939103-05)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
6 x 60s exposure (average combine), 3x3 binning, C Filter
2021-12-05 21:16 UT (#939103-08)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
132P/Helin-Roman-Alu
(passing through Cetus)
Sun Distance 1.72 AU (receeding)
Earth Distance 1.10 AU (163.9 million km)		    132P/Helin-Roman-Alu - 2021-12-16, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 59.42 arcsec/hr, Dec 25.30 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 60s exposure (average combine), 3x3 binning, C Filter
2021-12-16 19:26 UT (#942008-10)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, C Filter
2021-12-16 19:23 UT (#942004-10)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
132P/Helin-Roman-Alu
(passing through Cetus)
Sun Distance 1.73 AU (receeding)
Earth Distance 1.11 AU (165.4 million km)		    132P/Helin-Roman-Alu - 2021-12-17, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 60.08 arcsec/hr, Dec 25.65 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 60s exposure (average combine), 3x3 binning, C Filter
2021-12-17 20:42 UT (#943076-78)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
7 x 60s exposure (average combine), 3x3 binning, C Filter
2021-12-17 20:44 UT (#943076-82)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
132P/Helin-Roman-Alu
(passing through Cetus)
Sun Distance 1.74 AU (receeding)
Earth Distance 1.17 AU (175.6 million km)		    132P/Helin-Roman-Alu - 2021-12-24, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 64.06 arcsec/hr, Dec 27.59 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 60s exposure (average combine), 3x3 binning, C Filter
2021-12-24 22:36 UT (#944041-43)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
3 x 60s exposure (average combine), 3x3 binning, C Filter
2021-12-24 22:36 UT (#944041-43)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
132P/Helin-Roman-Alu
(passing through Cetus)
Sun Distance 1.75 AU (receeding)
Earth Distance 1.21 AU (181.6 million km)		    132P/Helin-Roman-Alu - 2021-12-28, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 66.03 arcsec/hr, Dec 28.41 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 60s exposure (average combine), 3x3 binning, C Filter
2021-12-28 21:11 UT (#945024-26)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
6 x 60s exposure (average combine), 3x3 binning, C Filter
2021-12-28 21:13 UT (#945024-29)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
132P/Helin-Roman-Alu
(passing through Cetus)
Sun Distance 1.75 AU (receeding)
Earth Distance 1.22 AU (183.2 million km)		    132P/Helin-Roman-Alu - 2021-12-29, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 66.53 arcsec/hr, Dec 28.59 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 60s exposure (average combine), 3x3 binning, C Filter
2021-12-29 22:32 UT (#946062-64)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
7 x 60s exposure (average combine), 3x3 binning, C Filter
2021-12-29 22:35 UT (#946062-68)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
132P/Helin-Roman-Alu
(passing through Pisces)
Sun Distance 1.77 AU (receeding)
Earth Distance 1.28 AU (190.9 million km)		    132P/Helin-Roman-Alu - 2022-01-03, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 68.67 arcsec/hr, Dec 29.29 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 60s exposure (average combine), 3x3 binning, C Filter
2022-01-03 18:17 UT (#948042-44)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
7 x 60s exposure (average combine), 3x3 binning, C Filter
2022-01-03 18:20 UT (#948042-48)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
132P/Helin-Roman-Alu
(passing through Pisces)
Sun Distance 1.77 AU (receeding)
Earth Distance 1.30 AU (194.2 million km)		    132P/Helin-Roman-Alu - 2022-01-05, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 69.51 arcsec/hr, Dec 29.50 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 60s exposure (average combine), 3x3 binning, C Filter
2022-01-05 19:38 UT (#949021-23)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
7 x 60s exposure (average combine), 3x3 binning, C Filter
2022-01-05 19:40 UT (#949021-27)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
132P/Helin-Roman-Alu
(passing through Cetus)
Sun Distance 1.78 AU (receeding)
Earth Distance 1.32 AU (197.5 million km)		    132P/Helin-Roman-Alu - 2022-01-07, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 70.28 arcsec/hr, Dec 29.66 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 60s exposure (average combine), 3x3 binning, C Filter
2022-01-07 19:16 UT (#950048-50)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
7 x 60s exposure (average combine), 3x3 binning, C Filter
2022-01-07 19:18 UT (#950048-54)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
     

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156P/Russell-LINEAR - Nov 2020 to Feb 2021

156P/Russell-LINEAR
(passing through Triangulum)
Sun Distance 1.46 AU  (receeding)
Earth Distance 0.88 AU (131.2 million km)		    156P/Russell-LINEAR - 2021-01-08  Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 103.91 arcsec/hr, Dec 57.15 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
2 x 45s exposure (average combine), 3x3 binning, C Filter
2021-01-08 17:40 UT (#847003-04)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
9 x 45s exposure (average combine), 3x3 binning, C Filter
2021-01-08 17:44 UT (#847003-11)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
More 2020-2021 images of 156P/Russell-LINEAR
on Comets 2020 Page >>		    

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277P/LINEAR - Jan 2021

277P/LINEAR
(passing through Aries)
Sun Distance 1.90 AU
Earth Distance 1.19 AU (177.9 million km)
Comet appears to be in two fragments 		   277P/LINEAR - 2021-01-02, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 45.79 arcsec/hr, Dec -29.59 arcsec/hr)
Comet appears to be in two fragments ?
Image   Image
Annotated CCD Image (50% size, square root scale)
2 x 60s exposure (average combine), 3x3 binning, C Filter
2021-01-02 23:06 UT (#843085-86)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   Annotated CCD Image (100% size, square root scale, cropped)
2 x 60s exposure (average combine), 3x3 binning, C Filter
2021-01-02 23:06 UT (#843085-86)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
277P/LINEAR
(passing through Aries)
Sun Distance 1.90 AU
Earth Distance 1.20 AU (179.0 million km)
Comet shown by white cross-hairs
Several faint galaxies in same field of view		    277P/LINEAR - 2021-01-03, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 46.70 arcsec/hr, Dec -29.05 arcsec/hr)
Only one confirmed fragment, other candidates are NED galaxies
(cf. earlier 2021-01-02 image where there seemed to be two)
Image   Image
Annotated CCD Image (50% size, square root scale)
4 x 60s exposure (average combine), 3x3 binning, C Filter
2021-01-03 21:10 UT (#844017-20)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   Annotated CCD Image (100% size, square root scale, cropped)
4 x 60s exposure (average combine), 3x3 binning, C Filter
2021-01-03 21:10 UT (#844017-20)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
277P/LINEAR
(passing through Aries)
Sun Distance 1.91 AU (receeding)
Earth Distance 1.22 AU (182.6 million km)
Comet shown by white cross-hairs		    277P/LINEAR - 2021-01-06, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 49.59 arcsec/hr, Dec -27.29 arcsec/hr)
Comet shown by white cross-hairs
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 60s exposure (average combine), 3x3 binning, C Filter
2021-01-06 21:04 UT (#846088-90)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   Annotated CCD Image (100% size, square root scale, cropped)
8 x 60s exposure (average combine), 3x3 binning, C Filter
2021-01-06 21:07 UT (#846088-96)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
277P/LINEAR
(passing through Aries)
Sun Distance 1.91 AU (receeding)
Earth Distance 1.24 AU (185.0 million km)
Comet shown by white cross-hairs		    277P/LINEAR - 2021-01-08, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 51.31 arcsec/hr, Dec -26.19 arcsec/hr)
Comet shown by white cross-hairs
Image   Image
Annotated CCD Image (50% size, square root scale)
2 x 60s exposure (average combine), 3x3 binning, C Filter
2021-01-08 17:54 UT (#847014-15)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   Annotated CCD Image (100% size, square root scale, cropped)
9 x 60s exposure (average combine), 3x3 binning, C Filter
2021-01-08 17:58 UT (#847014-22)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     

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398P/Boattini - Nov 2020 to Apr 2021

398P/Boattini
(passing through Orion)
Sun Distance 1.31 AU (turning)
Earth Distance 0.39 AU (59 million km)		    398P/Boattini - 2021-01-08, Detail
Alias: P/2020 P2 (Boattini)
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 56.97 arcsec/hr, Dec 92.90 arcsec/hr)
Image   Image
CCD Image (50% size, square root scale)
2 x 45s exposure (average combine), 3x3 binning, C Filter
2021-01-08 18:19 UT (#847042-43)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
9 x 45s exposure (average combine), 3x3 binning, C Filter
2021-01-08 18:22 UT (#847042-50)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
More 2020-2021 Images of 398P/Boattini
on Comets 2020 Page >>		    

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C/2017 K2 (PANSTARRS) - Nov 2021 to Feb 2022

C/2017 K2 (PANSTARRS)
(passing through Hercules)
Sun Distance 4.73 AU
Earth Distance 5.39 AU (806.8 million km)
Poor quality image due to wind vibration & single frame		    C/2017 K2 (PANSTARRS) - 2021-11-24, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 26.94 arcsec/hr, Dec -19.80 arcsec/hr)
Poor quality image due to wind vibration & single frame
Image   Image
Annotated CCD Image (50% size, square root scale)
45s exposure (single frame), 3x3 binning, C Filter
2021-11-24 19:17 UT (#937060)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
Image detail as left
     
C/2017 K2 (PANSTARRS)
(passing through Hercules)
Sun Distance 4.63 AU (approaching)
Earth Distance 5.34 AU (798.9 million km)		    C/2017 K2 (PANSTARRS) - 2021-12-05, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 28.62 arcsec/hr, Dec -17.24 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2021-12-05 18:05 UT (#939017-19)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
9 x 45s exposure (average combine), 3x3 binning, C Filter
2021-12-05 18:08 UT (#939017-25)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
C/2017 K2 (PANSTARRS)
(passing through Hercules)
Sun Distance 4.56 AU (approaching)
Earth Distance 5.29 AU (791.1 million km)		    C/2017 K2 (PANSTARRS) - 2021-12-13, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 29.48 arcsec/hr, Dec -15.35 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2021-12-13 18:13 UT (#941014-16)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
9 x 45s exposure (average combine), 3x3 binning, C Filter
2021-12-13 18:16 UT (#941014-22)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
C/2017 K2 (PANSTARRS)
(passing through Hercules)
Sun Distance 4.52 AU (approaching)
Earth Distance 5.25 AU (786.0 million km)		    C/2017 K2 (PANSTARRS) - 2021-12-18, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 29.84 arcsec/hr, Dec -14.29 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2021-12-18 06:23 UT (#943115-17)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
9 x 45s exposure (average combine), 3x3 binning, C Filter
2021-12-18 06:23 UT (#943112-20)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
C/2017 K2 (PANSTARRS)
(passing through Ophiuchus)
Sun Distance 4.32 AU (approaching)
Earth Distance 5.03 AU (752.9 million km)		    C/2017 K2 (PANSTARRS) - 2022-01-09, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 30.31 arcsec/hr, Dec -9.23 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2022-01-09 06:38 UT (#951146-48)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
9 x 45s exposure (average combine), 3x3 binning, C Filter
2022-01-09 06:40 UT (#951146-54)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
C/2017 K2 (PANSTARRS)
(passing through Ophiuchus)
Sun Distance 4.05 AU (approaching)
Earth Distance 4.59 AU (686.6 million km)		    C/2017 K2 (PANSTARRS) - 2022-02-08, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 27.13 arcsec/hr, Dec -3.14 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2022-02-08 05:58 UT (#966107-09)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
9 x 45s exposure (average combine), 3x3 binning, C Filter
2022-02-08 06:01 UT (#966107-15)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
See Also    
Images of C2017 K2 (PANSTARRS) on Comets 2022 Page >>    
Images of C2017 K2 (PANSTARRS) on Comets 2023 Page >>    
     

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C/2019 L3 (ATLAS) - Sep 2020 to Jan 2022+

C/2019 L3 (ATLAS)
(passing through Cassiopeia)
Sun Distance 5.51 AU (approaching)
Earth Distance 5.08 AU (759.9 million km)
(just outside orbit of Jupiter (Sun Dist 5.2 AU) )		    C/2019 L3 (ATLAS)  - 2020-09-13, Detail
Autoguiding failed on this occasion
Comet's rate of motion is small
(Ra -27.13 arcsec/hr, Dec 9.87 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, linear scale)
5 x 45s exposure (average combine), 3x3 binning, C Filter
2020-09-13 23:31 UT (#808104-10)
12" LX200R (at f/10.4) + ST-10XME		   CCD Image (100% size, linear scale, cropped)
Image details as left
     
C/2019 L3 (ATLAS)
(passing through Cassiopeia)
Sun Distance 5.47 AU (approaching)
Earth Distance 5.00 AU (748.3 million km)		    C/2019 L3 (ATLAS)  - 2020-09-19, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra -30.68 arcsec/hr, Dec 7.27 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
7 x 45s exposure (average combine), 3x3 binning, C Filter
2020-09-19 22:09 UT (#812102-08)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
Image details as left
     
C/2019 L3 (ATLAS)
(passing through Cassiopeia)
Sun Distance 5.41 AU (approaching)
Earth Distance 4.89 AU (731.6 million km)		    C/2019 L3 (ATLAS)  - 2020-09-29, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra -34.31 arcsec/hr, Dec 2.89 arcsec/hr
Image   Image
Annotated CCD Image (50% size, square root scale)
4 x 45s exposure (average combine), 3x3 binning, C Filter
2020-09-29 02:17 UT (#814144-48)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
Image details as left
     
C/2019 L3 (ATLAS)
(passing through Cassiopeia)
Sun Distance 5.26 AU (approaching)
Earth Distance 4.65 AU (695.4 million km)		    C/2019 L3 (ATLAS)  - 2020-10-23, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra -29.76 arcsec/hr, Dec -9.50 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
7 x 45s exposure (average combine), 3x3 binning, C Filter
2020-10-23 20:19 UT (#820052-58)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
Image details as left
     
C/2019 L3 (ATLAS)
(passing through Cassiopeia)
Sun Distance 5.08 AU  (approaching)
Earth Distance 4.49 AU (672.3 million km)		    C/2019 L3 (ATLAS)  - 2020-11-22, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra -2.78 arcsec/hr, Dec -19.30 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
6 x 45s exposure (average combine), 3x3 binning, C Filter
2020-11-22 20:09 UT (#832020-26)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
Image details as left
     
C/2019 L3 (ATLAS)
(passing through Cassiopeia)
Sun Distance 5.05 AU
Earth Distance 4.48 AU (670.7 million km)		    C/2019 L3 (ATLAS)  - 2020-12-27, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 2.38 arcsec/hr, Dec -20.01 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
7 x 45s exposure (average combine), 3x3 binning, C Filter
2020-11-27 21:52 UT (#835050-56)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
Image details as left
     
C/2019 L3 (ATLAS)
(passing through Cassiopeia)
Sun Distance 5.05 AU (approaching)
Earth Distance 4.48 AU (670.4 million km)		    C/2019 L3 (ATLAS)  - 2020-11-28, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 3.30 arcsec/hr, Dec -20.10 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
7 x 45s exposure (average combine), 3x3 binning, C Filter
2020-11-28 19:55 UT (#836084-90)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
Image details as left
     
C/2019 L3 (ATLAS)
(passing through Cassiopeia)
Sun Distance 5.02 AU (approaching)
Earth Distance 4.48 AU (669.7 million km)		    C/2019 L3 (ATLAS)  - 2020-12-02, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 7.21 arcsec/hr, Dec -20.43 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
5 x 45s exposure (average combine), 3x3 binning, C Filter
2020-12-02 18:46 UT (#837030-36)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
Image details as left
     
C/2019 L3 (ATLAS)
(passing through Cassiopeia)
Sun Distance 4.77 AU (approaching)
Earth Distance 4.57 AU (684.1 million km)		    C/2019 L3 (ATLAS)  - 2020-12-16, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 42.17 arcsec/hr, Dec -15.60 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
7 x 45s exposure (average combine), 3x3 binning, C Filter
2021-01-16 20:32 UT (#850073-79)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
Image details as left
     
C/2019 L3 (ATLAS)
(passing through Gemini)
Sun Distance 3.56 AU (approaching)
Earth Distance 2.60 AU (389.2 million km)
Poor quality image (due to very bright moonlit sky)		    C/2019 L3 (ATLAS)  - 2022-01-17, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra -34.78 arcsec/hr, Dec -30.53 arcsec/hr)
Poor quality image (due to very bright moonlit sky)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2022-01-17 21:15 UT (#955047-49)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, log scale, cropped)
9 x 45s exposure (average combine), 3x3 binning, C Filter
2022-01-17 21:18 UT (#955047-55)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
C/2019 L3 (ATLAS)
(passing through Cassiopeia)
Sun Distance 4.73 AU (approaching)
Earth Distance 4.61 AU (689.0 million km)		    C/2019 L3 (ATLAS)  - 2021-01-23, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 45.91 arcsec/hr, Dec -14.07 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2021-01-23 20:18 UT (#854079-81)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
7 x 45s exposure (average combine), 3x3 binning, C Filter
2021-01-23 20:19 UT (#854079-85)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
C/2019 L3 (ATLAS)
(passing through Cassiopeia)
Sun Distance 4.59 AU (approaching)
Earth Distance 4.73 AU (707.7 million km)		    C/2019 L3 (ATLAS)  - 2021-02-16, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 56.28 arcsec/hr, Dec -8.82 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2021-02-16 23:32 UT (#859125-27)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
6 x 45s exposure (average combine), 3x3 binning, C Filter
2021-02-16 23:34 UT (#859125-30)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
C/2019 L3 (ATLAS)
(passing through Cassiopeia)
Sun Distance 4.55 AU (approaching)
Earth Distance 4.78 AU (714.7 million km)		    C/2019 L3 (ATLAS)  - 2021-02-25, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 59.29 arcsec/hr, Dec -7.10 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2021-02-25 22:00 UT (#863065-67)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
6 x 45s exposure (average combine), 3x3 binning, C Filter
2021-02-25 22:02 UT (#863065-71)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
C/2019 L3 (ATLAS)
(passing through Auriga)
Sun Distance 3.68 AU
Earth Distance 3.74 AU (559.4 million km)		    C/2019 L3 (ATLAS)  - 2021-09-27, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 34.29 arcsec/hr, Dec -12.30 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2021-09-27 23:50 UT (#917186-88)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
9 x 45s exposure (average combine), 3x3 binning, C Filter
2021-09-27 23:52 UT (#917186-94)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
C/2019 L3 (ATLAS)
(passing through Lynx)
Sun Distance 3.61 AU (approaching)
Earth Distance 3.22 AU (481.1 million km) 		   C/2019 L3 (ATLAS)  - 2021-10-31, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 7.41 arcsec/hr, Dec -13.19 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2021-10-31 03:45 UT (#930212-14)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, log scale, cropped)
8 x 45s exposure (average combine), 3x3 binning, C Filter
2021-10-31 03:47 UT (#930212-19)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
C/2019 L3 (ATLAS)
(passing through Lynx)
Sun Distance 3.59 AU  (approaching)
Earth Distance 2.97 AU (444.2 million km)		    C/2019 L3 (ATLAS)  - 2021-11-17, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra -9.23 arcsec/hr, Dec -14.86 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2021-11-17 02:41 UT (#934157-59)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, log scale, cropped)
9 x 45s exposure (average combine), 3x3 binning, C Filter
2021-11-17 02:44 UT (#934157-65)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
C/2019 L3 (ATLAS)
(passing through Lynx)
Sun Distance 3.58 AU  (approaching)
Earth Distance 2.88 AU (430.6 million km)		    C/2019 L3 (ATLAS)  - 2021-11-24, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra -16.13 arcsec/hr, Dec -16.05 arcsec/hr)
Poor contrast due to close proximity to bright Moon
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2021-11-24 02:51 UT (#936227-33)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2021-11-24 02:51 UT (#936227-33)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
C/2019 L3 (ATLAS)
(passing through Lynx)
Sun Distance 3.57 AU (approaching)
Earth Distance 2.82 AU (422.2 million km)		    C/2019 L3 (ATLAS)  - 2021-11-28, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra -20.68 arcsec/hr, Dec -17.05 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2021-11-28 21:01 UT (#938035-37)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, log scale, cropped)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2021-11-28 21:01 UT (#938035-37)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
C/2019 L3 (ATLAS)
(passing through Lynx)
Sun Distance 3.57 AU (approaching)
Earth Distance 2.75 AU (411.0 million km)		    C/2019 L3 (ATLAS)  - 2021-12-05, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra -26.88 arcsec/hr, Dec -18.82 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2021-12-05 20:36 UT (#939083-85)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, log scale, cropped)
9 x 45s exposure (average combine), 3x3 binning, C Filter
2021-12-05 20:39 UT (#939083-91)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
C/2019 L3 (ATLAS)
(passing through Auriga)
Sun Distance 3.56 AU (approaching)
Earth Distance 2.65 AU (397.0 million km)		    C/2019 L3 (ATLAS)  - 2021-12-17, Detail
Comet's rate of motion
(Ra -34.66 arcsec/hr, Dec -22.22 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2021-12-17 00:55 UT (#942206-08)
12" LX200R (at f/10.4) + ST-10XME
Non-guided		   CCD Image (100% size, log scale, cropped)
8 x 45s exposure (average combine), 3x3 binning, C Filter
2021-12-17 00:53 UT (#942200-08)
12" LX200R (at f/10.4) + ST-10XME
Non-guided
     
C/2019 L3 (ATLAS)
(passing through Gemini)
Sun Distance 3.56 AU (approaching)
Earth Distance 2.61 AU (390.3 million km)		    C/2019 L3 (ATLAS)  - 2021-12-25, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra -38.06 arcsec/hr, Dec -24.84 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2021-12-25 01:27 UT (#944078-80)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, log scale, cropped)
4 x 45s exposure (average combine), 3x3 binning, C Filter
2021-12-25 01:28 UT (#944078-81)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
C/2019 L3 (ATLAS)
(passing through Gemini)
Sun Distance 3.56 AU (approaching)
Earth Distance 2.59 AU (388.1 million km)		    C/2019 L3 (ATLAS)  - 2021-12-28, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra -38.93 arcsec/hr, Dec -26.07 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2021-12-28 22:21 UT (#945056-58)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, log scale, cropped)
9 x 45s exposure (average combine), 3x3 binning, C Filter
2021-12-28 22:21 UT (#945053-61)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
Goto
Later Images of C/2019 L3 (ATLAS)
on Comets 2022 Page >>		    
     
     

C/2019 L3 (ATLAS)
Inverse Spectrum Images
  
C/2019 L3 (ATLAS)  - 2021-09-27
Glare in bottom right corner is from HIP 36163 (mag +6.66)
which lies 0.62' outside of field of view
Image
False Colour CCD Image (70% size, square root scale)
9 x 45s exposure (average combine), 3x3 binning, C Filter
2021-09-27 23:52 UT (#917186-94)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
C/2019 L3 (ATLAS)  - 2021-10-31
Image
False Colour CCD Image (70% size, log scale)
8 x 45s exposure (average combine), 3x3 binning, C Filter
2021-10-31 03:47 UT (#930212-19)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
C/2019 L3 (ATLAS)  - 2021-11-17
Image
False Colour CCD Image (70% size, log scale)
9 x 45s exposure (average combine), 3x3 binning, C Filter
2021-11-17 02:44 UT (#934157-65)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
C/2019 L3 (ATLAS)  - 2021-11-28
Image
False Colour CCD Image (70% size, log scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2021-11-28 21:01 UT (#938035-37)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
C/2019 L3 (ATLAS)  - 2021-12-05
Image
False Colour CCD Image (70% size, log scale)
9 x 45s exposure (average combine), 3x3 binning, C Filter
2021-12-05 20:39 UT (#939083-91)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
C/2019 L3 (ATLAS)  - 2021-12-17
Image
False Colour CCD Image (70% size, log scale)
8 x 45s exposure (average combine), 3x3 binning, C Filter
2021-12-17 00:53 UT (#942200-08)
12" LX200R (at f/10.4) + ST-10XME
Non-guided
 
C/2019 L3 (ATLAS)  - 2021-12-28
Image
False Colour CCD Image (70% size, log scale)
9 x 45s exposure (average combine), 3x3 binning, C Filter
2021-12-28 22:21 UT (#945053-61)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Goto Post-Dec Pictures
Later Images of C/2019 L3 (ATLAS)
on Comets 2022 Page >>

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C/2020 R4 (ATLAS) - Mar 2021

C/2020 R4 (ATLAS)
(passing through Aquila)
Sun Distance 1.11 AU
Earth Distance 1.06 AU (158.2 million km)		    C/2020 R4 (ATLAS)  - 2021-02-27, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra -92.18 arcsec/hr, Dec 73.32 arcsec/hr)
Image   Image
CCD Image (50% size, square root scale)
3 x 30s exposure (average combine), 3x3 binning, C Filter
2021-03-27 04:06 UT (#876114-16)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
15 x 30s exposure (average combine), 3x3 binning, C Filter
2021-03-27 04:10 UT (#876114-28)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
     

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C/2020 T2 (Palomar) - Feb to Apr 2021

C/2020 T2 (Palomar)
(passing through Canes Venatici)
Sun Distance 2.70 AU
Earth Distance 2.07 AU (310.2 million km)
Comet indicated by white cross-hairs		    C/2020 T2 (Palomar) - 2021-02-11, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 29.19 arcsec/hr, Dec 18.07 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2021-02-11 00:52 UT (#858150-52)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
15 x 45s exposure (average combine), 3x3 binning, C Filter
2021-02-11 00:58 UT (#858150-64)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
C/2020 T2 (Palomar)
(passing through Canes Venatici)
Sun Distance 2.60 AU (approaching)
Earth Distance 1.88 AU (281.7 million km)
Comet indicated by white cross-hairs		    C/2020 T2 (Palomar) - 2021-02-25, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 17.78 arcsec/hr, Dec 19.93 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2021-02-25 02:59 UT (#862034-36)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
15 x 45s exposure (average combine), 3x3 binning, C Filter
2021-02-25 03:05 UT (#862034-48)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
C/2020 T2 (Palomar)
(passing through Canes Venatici)
Sun Distance 2.44 AU (approaching)
Earth Distance 1.62 AU (242.9 million km)
Comet indicated by white cross-hairs		    C/2020 T2 (Palomar) - 2021-03-22, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra -6.94 arcsec/hr, Dec 13.70 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2021-03-22 03:05 UT (#873082-84)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, log scale, cropped)
14 x 45s exposure (average combine), 3x3 binning, C Filter
2021-03-22 03:09 UT (#873082-96)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
C/2020 T2 (Palomar)
(passing through Canes Venatici)
Sun Distance 2.41 AU (approaching)
Earth Distance 1.58 AU (236.9 million km)
Comet indicated by white cross-hairs		    C/2020 T2 (Palomar) - 2021-03-27, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra -11.60 arcsec/hr, Dec 10.51 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
2 x 45s exposure (average combine), 3x3 binning, C Filter
2021-03-27 02:09 UT (#876013-14)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
6 x 45s exposure (average combine), 3x3 binning, C Filter
2021-03-27 02:10 UT (#876013-18)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
C/2020 T2 (Palomar)
(passing through Canes Venatici)
Sun Distance 2.39 AU (approaching)
Earth Distance 1.56 AU (233.7 million km)
Comet indicated by white cross-hairs		    C/2020 T2 (Palomar) - 2021-03-30, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra -14.25 arcsec/hr, Dec 8.20 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2021-03-30 03:13 UT (#877148-50)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
15 x 45s exposure (average combine), 3x3 binning, C Filter
2021-03-30 03:18 UT (#877148-62)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
C/2020 T2 (Palomar)
(passing through Canes Venatici)
Sun Distance 2.36 AU (approaching)
Earth Distance 1.53 AU (228.8 million km)
Comet indicated by white cross-hairs		    C/2020 T2 (Palomar) - 2021-04-03, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra -18.09 arcsec/hr, Dec 4.05 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2021-04-03 23:17 UT (#881071-73)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, square root scale, cropped)
15 x 45s exposure (average combine), 3x3 binning, C Filter
2021-04-03 23:17 UT (#881065-79)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
C/2020 T2 (Palomar)
(passing through Canes Venatici)
Sun Distance 2.32 AU (approaching)
Earth Distance 1.49 AU (222.4 million km)
Comet indicated by white cross-hairs		    C/2020 T2 (Palomar) - 2021-04-11, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra -22.79 arcsec/hr, Dec -4.07 arcsec/hr)
(Note : Image is Log Scaled)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 45s exposure (average combine), 3x3 binning, C Filter
2021-04-11 21:50 UT (#882004-06)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, log scale, cropped)
15 x 45s exposure (average combine), 3x3 binning, C Filter
2021-04-11 21:56 UT (#882004-18)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
     

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C/2021 A1 (Leonard) - Nov 2021

C/2021 A1 (Leonard)
(passing through Ursa Major)
Sun Distance 1.40 AU  approaching)
Earth Distance 1.59 AU (237.8 million km)
Bright star in field of view is  HIP 57670 (mag + 5.73)		    C/2021 A1 (Leonard) - 2021-10-31, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 92.37 arcsec/hr, Dec -16.48 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 60s exposure (average combine), 3x3 binning, C Filter
2021-10-31 05:26 UT (#930280-82)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   CCD Image (100% size, log scale, cropped)
9 x 60s exposure (average combine), 3x3 binning, C Filter
2021-10-31 05:29 UT (#930280-88)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
C/2021 A1 (Leonard)
(passing through Canes Venatici)
 Sun Distance 1.14 AU (approaching)
Earth Distance 1.02 AU (152.1 million km)		    C/2021 A1 (Leonard) - 2021-11-17, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 48.68 arcsec/hr, Dec -11.87 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 60s exposure (average combine), 3x3 binning, C Filter
2021-11-17 05:06 UT (#934245-47)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   Annotated CCD Image (100% size, log scale, cropped)
9 x 60s exposure (average combine), 3x3 binning, C Filter
2021-11-17 05:07 UT (#934243-51)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
C/2021 A1 (Leonard)
(passing through Canes Venatici)
 Sun Distance 1.03 AU (approaching)
Earth Distance 0.77 AU (114.9 million km)
Passing by NGC 4631 (Caldwell 32)		    C/2021 A1 (Leonard) - 2021-11-17, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 152.49 arcsec/hr, Dec -31.49 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 60s exposure (average combine), 3x3 binning, C Filter
2021-11-24 03:47 UT (#936264-66)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   Annotated CCD Image (100% size, log scale, cropped)
9 x 60s exposure (average combine), 3x3 binning, C Filter
2021-11-24 03:50 UT (#936264-72)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
Much Later Imaging Attempt (2024)
 		    
C/2021 A1 (Leonard) - 2024-04-13
(passing through Ophiuchus)
 Sun Distance 9.15 AU (receeding)
Earth Distance 8.45 AU (1263.7 million km)
Expected position of comet (no visible) is shown by white circle		    C/2021 A1 (Leonard) - 2024-04-13, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra -13.32 arcsec/hr, Dec 5.95 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
6 x 60s exposure (average combine), 3x3 binning, Clear Filter
2024-04-13 03:25 UT (#1207111-18)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		   Annotated CCD Image (125% size, square root scale, cropped)
Image details as left
     
     

C/2021 A1 (Leonard)  - False Colour Image(s) 
Inverse Spectrum
  
C/2021 A1 (Leonard) - 2021-11-17
Image
False Colour CCD Image (70% size, log scale)
9 x 60s exposure (average combine), 3x3 binning, C Filter
2021-11-17 05:07 UT (#934243-51)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
C/2021 A1 (Leonard) - 2021-11-24
Passing by NGC 4631 "The Whale" (top left)
Image
False Colour CCD Image (70% size, log scale)
9 x 60s exposure (average combine), 3x3 binning, C Filter
2021-11-24 03:50 UT (#936264-72)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
 

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This Web Page: Comet Images - 2021
Last Updated : 2024-04-13
Site Owner : David Richards
Home Page : David's Astronomy Web Site