David's Astronomy Pages
CCD Images - Session 939 (2021-12-05)

Objects Session Notes
Bullet 10P/Tempel - Comet
Bullet 132P/Helin-Roman-Alu - Comet
Bullet C/2017 K2 (PANSTARRS) - Comet
Bullet C/2019 L3 (ATLAS) - Comet
   
Bullet Nova Cas 2021 - Nova (V1405 Cas)
   
Bullet EGN 2021aceg - Extragalactic Nova in Spiral Galaxy M31
Bullet M110 - Elliptical Galaxy
   
Bullet NGC 7436 - Elliptical Galaxy (VV 84, PGC 70124)
   
Bullet SN 2021win - Galaxy with Type Ia Supernova 2021win
   
Bullet UGCA 1 - Spiral Galaxy (PGC 538)
Bullet UGCA 38  - Spiral Galaxy (PGC 10128)
Bullet UGC 2505 - Irregular Galaxy
    
Bullet Variable Stars (photometric monitoring)
- SU Tau, BL Lac
    
Bullet Nearby Stars (astrometric monitoring)
- None
  
   
- Evening session 5.6 hours
- Session ended by a Dome Rotation/Dome Closure issue and cloud
- 12" LX200 + ST-10XME for imaging
- TS 80mm APO + ZWO ASI178MC for guiding & imaging
- Ambient Temperature: -3°C (min)
- CCD Temperature:  -25°C
- Notes from 2021-12-05 >>
   [ Local Files >> ]
   

10P/Tempel - Comet

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
     
Images of 10P/Tempel on Comets 2021 Page >>    

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132P/Helin-Roman-Alu - Comet

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
     
Images of 132P/Helin-Roman-Alu on Comets 2021 Page >>    

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C/2017 K2 (PANSTARRS) - Comet

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
     
Images of C2017 K2 (PANSTARRS) on Comets 2021 Page >>    

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C/2019 L3 (ATLAS) - Comet

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
     
Images of C/2019 L3 (ATLAS) on Comets 2021 Page >>    

C/2019 L3 (ATLAS)
Inverse Spectrum
  
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
 
 

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Nova Cas 2021 - Nova (V1405 Cas)

Nova Cas 2021 (Cassiopeia)
Nova in Cassiopeia discovered 2021-03-18.4236,  by Yuji Nakamura (Japan)
Magnitude at discovery +9.6 (unfiltered CCD)
AT2021hkn (Type: Nova) reported by 2021/03/30.055 UT by Gaia
Alias: Gaia21bpe, AT2021hkn, V1405 Cas
 
Nova Cas 2021 / AT2021hkn - 2021-12-05 (T+262.5d)
Image below (2021-12-05.935) was taken 262.5 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +8.88
(linked with Detection Threshold = 50)
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2021-12-05 22:28 UT (#939132-36)
12" LX200R (at f/10.4) + ST-10XME
 
Nova Cas 2021 (V1405 Cas) Spectra - 2021-12-05 (T+262.5d)
Image
Spectra produced in AstroMain using Image taken with Star Analyser 200
3 x 30s exposure (average combine), 2x2 binning, S Filter
2021-12-05 22:31 UT (#939137-41)
12" LX200R (at f/10.4) + ST-10XME
 
Images of Nova Cas 2021 on Novae Page >>

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EGN 2021aceg - Extragalactic Nova in Spiral Galaxy M31

Nova 2021aceg in M31 (Andromeda)
AT2021aceg (Type: EGN) discovered 2021-10-25.570 UT by XOSS
Alias: PSP21ac, PNV J00473256+3938102
Discovery Magnitude 16.1 (Clear Filter)
vs Prior Non-Detection Limiting Magnitude 17.5
 (Rochester Supernova site | Rochester EGN Page | Klaus Wenzel image )
( TNS 2021aceg )
 
 Nova 2021aceg in M31 - 2021-12-05 (T+41.3d)
Image below (2021-12-05.820) was taken 41.3 days after discovery of 2021aceg
Position of earlier EGN (no longer visible) is shown by white cross-hairs
Image 
Annotated CCD Image  (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-12-05 19:49 UT (#939058-61)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
 Nova 2021aceg in M31 - Earlier Image 2021-10-31 (T+5.5d)
Image below (2021-10-31.102) was taken 5.5 days after discovery of 2021aceg
EGN is shown by white cross-hairs
Measured magnitude +17.15
Object confirmed not to be a known foreground star using Aladin
Image 
Annotated CCD Image  (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-10-31 02:36 UT (#930169-73)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of Nova AT 2021aceg (in M31) on Transients 2021 Page >>

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M110 - Elliptical Galaxy

M110 (Andromeda)
Image 
CCD Image  (70% size, square root scale)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-12-05 22:12 UT (#939125-28)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 

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NGC 7436 - Elliptical Galaxy (VV 84, PGC 70124)

NGC 7436 (Pegasus)
Alias: VV 84, PGC 70124
Vorontsov-Velyaminov Catalogue
[ Vorontsov-Velyaminov Galaxies ]

NGC 7436 with adjacent galaxies NGC 7433 & NGC 7435
Also with PGC 70100 in same field of view
Image
Annotated CCD Image  (50% size, square root scale)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2021-12-05 18:55 UT (#939039-42)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
NGC 7436 / VV 84 - detail
Image
CCD Image (125% size, square root scale, cropped)
Image details as above
  
Image
Negative CCD Image (125% size, square root scale, cropped)
Image details as above

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SN 2021win - Type Ia Supernova in WISEA Galaxy

SN 2021win (Taurus)
Alias: In WISEA J050619.12+223047.4
SN 2021win (Type: Ia) discovered 2021-08-18.445 UT by ZTF
Alias: ZTF21abuibjs, Gaia21dyd
Magnitude at discovery ~ +16.4
 (Rochester Supernova site | Gaia21dyd )
 
WISEA Galaxy with SN 2021win (T+109.4d)
Position of reported SN is shown by white circle
Bright star in FOV is HIP 23784 (magnitude +7.13)
Image 
Annotated CCD Image  (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-12-05 20:12 UT (#939066-70)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
SN 2021win - 2021-12-05 (T+109.4d)
Image below (2021-12-05.835) was taken 109.4 days after discovery of 2021win
Position of reported SN is shown by white cross-hairs
Host galaxy is faint but just visible.
SN itself has probably faded and is no longer visible.
Image 
Annotated CCD Image  (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-12-05 20:12 UT (#939066-70)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
 

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UGCA 1 - Spiral Galaxy (PGC 538)

UGCA 1 (Cetus)
Alias: PGC 538 (Catalog mag +16.58)
Foreground star is GSC 4669:167 / PPM 181866 (catalog mag +10.0)
 [ UGCA Galaxies
Relatively poor image (single frame). Target to again be rescheduled fo a future session.
Image
Annotated CCD Image  (50% size, square root scale)
180s exposure (single frame), 3x3 binning, C Filter
2021-12-05 18:21 UT (#939030)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
UGCA 1 - Earlier Attempt (Nov 2020)
Galaxy partially hidden by foreground star GSC 4669:167 (mag +10.0)
Relatively poor image (single frame). Target to be rescheduled fo a future session.
Image
CCD Image (100% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2020-11-19 21:19 UT (#830027-29)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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UGCA 38  - Spiral Galaxy (PGC 10128)

UGCA 38 / PGC 10128 (Cetus)
Catalog mag +16.4
 [ UGCA Galaxies

Galaxy is faint but visible
Image
Annotated CCD Image (50% size, square root scale)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-12-05 21:38 UT (#939115-17)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
UGCA 38 / PGC 10128  -  Detail
Image
CCD Image (100% size, square root scale, cropped)
Image details as above
 
Image
Negative CCD Image (100% size, square root scale, cropped)
Image details as above
 
UGCA 38 / PGC 10128  -  Earlier Image (Oct 2020)
Image
CCD Image (100% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2020-10-23 23:23 UT (#820149-51)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 

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UGC 2505 - Irregular Galaxy with Type II Supernova 2021bge

UGC 2505 (Cetus)
Earlier (Q1 2021) images of UGC 2505 contained a supernova:

SN 2021bge (Type: II) discovered 2021/01/27.517 UT by Koichi Itagaki
Alias: ATLAS21dfn, Gaia21aqd
Discovery Magnitude 16.8 (Clear Filter)
vs Prior Non-Detection in DSS Image
Confirmed SN II
Gaia, 2021-02-05 00:41:24, Mag 16.74
Gaia, 2021-03-17 05:48:37, Mag 17.20
Gaia, 2021-03-21 11:52:04, Mag 17.23
Gaia, 2021-06-28 20:08:11, Mag 20.09
Gaia, 2021-07-18 08:13:24, Mag 20.42
Gaia, 2021-08-20 09:38:19, Mag 20.70
 ( Rochester Supernova site | Discovery Image  )
( TNS 2021bge | Gaia21aqd )
 
UGC 2505 - 2021-12-05 (T+312.4d)
Image below (2021-12-05.872) was taken 312.4 days after discovery of 2021bge
SN has long since faded and is no longer visible in image below
Image is for comparison with earlier images with SN
Although UGC 2505 is recorded in catalogs as an irregular galaxy,
it looks more like a spiral galaxy ?
Image
Annotated CCD Image  (125% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-12-05 21:02 UT (#939096-98)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Image
Negative CCD Image (125% size, square root scale, cropped)
Image details as above
  
UGC 2505 with SN2021bge - Earlier Image (2021-01-31, T+4.3d)
Image below (2021-01-31.867) was taken 4.3 days after discovery of 2021bge
SN is shown by white cross hairs.  Measured Magnitude +16.35
Image
Annotated CCD Image  (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-01-31 20:57 UT (#856062-66)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN2021bge (UGC 2505) on Supernovae 2021 Page >>

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