David's Astronomy Pages
Images - Session 1209 (2024-04-17)

Objects Session Notes
Bullet 13P/Olbers - Comet
Bullet 29P/Schwassmann-Wachmann - Comet
Bullet C/2021 S3 (PANSTARRS) - Comet
Bullet C/2023 A3 (Tsuchinshan-ATLAS) - Comet
   
Bullet AT 2022omj - CV Type Transient
Bullet AT 2023sqn - CV Type Transient (non detection)
Bullet AT 2024crd - Type Nova? Transient
   
Bullet M101 - Spiral Galaxy with Type IIL Supernova 2023ixf
   
Bullet NGC 3206 - Spiral Galaxy with Type IIn Supernova 2024bch
Bullet NGC 3690 - Spiral Galaxy with Type Ia Supernova 2023wrk
Bullet NGC 5235 - Spiral Galaxy with Type Ia Supernova  2024grb
Bullet NGC 6433 - Spiral Galaxy with Type Ia Supernova 2024efn
   
Bullet UGC 8630 - Spiral Galaxy with Type II Supernova 2024drv
   
  - Comet 62P Tsuchinshan, MCG -1-33-30 w/SN & NGC 6004 w/SN  attempts failed (due to cloud)
   
Bullet Variable Stars (photometric monitoring)
- BL Lac

- SS Her attempt failed (due to cloud)
    
Bullet Nearby Stars (astrometric monitoring)
- Barnards Star

- Groombridge 34 attempt failed (due to cloud)
 
  
- Attempted AllNight Session (6.4 hrs), second half of session was badly affected by thin moon-lit cloud  and the images from several targets although acquired were later rejected.
   
- 12" LX200 + ST-10XME for imaging
- TS 80mm APO + ZWO ASI178MC for guiding & imaging
- Ambient Temperature: 0.5°C (min)
- CCD Temperature:   -20°/-25°C
- Notes from 2024-04-17 >>
   
- Aurora Images/Video from preceeding night, 2024-04-16 >>
Image
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Observing Result

Image

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13P/Olbers - Comet

13P/Olbers - 2024-04-17
(passing through Taurus)

Sun Distance 1.60 AU (approaching)
Earth Distance 2.29 AU (342.2 million km)
   13P/Olbers - 2024-04-17 Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 73.69 arcsec/hr, Dec 55.86 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
2 x 60s exposure (average combine), 3x3 binning, Clear Filter
2024-04-17 21:08 UT (#1209007-08)
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)
8 x 60s exposure (average combine), 3x3 binning, Clear Filter
2024-04-17 21:12 UT (#1209007-14)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
Images of 13P/Olbers on Comets 2024 Page >>    

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29P/Schwassmann-Wachmann - Comet

29P/Schwassmann-Wachmann - 2024-04-17
(passing through Cancer)

Sun Distance 6.19 AU (receeding slowly)
Earth Distance 6.09 AU (911.2 million km)
   29P/Schwassmann-Wachmann - 2024-04-17 Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 8.52 arcsec/hr, Dec -3.55 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
9 x 90s exposure (average combine), 3x3 binning, Clear Filter
2024-04-17 21:28 UT (#1209017-25)
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
     
Images of 29P/Schwassmann-Wachmann on Comets 2023 Page >>    
Images of 29P/Schwassmann-Wachmann on Comets 2024 Page >>    

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C/2021 S3 (PANSTARRS) - Comet

C/2021 S3 (PANSTARRS) - 2024-04-18
(passing through Cygnus)

Sun Distance 1.62 AU (receeding)
Earth Distance 1.44 AU (215.3 million km)
   C/2021 S3 (PANSTARRS) - 2024-04-18 Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 61.51 arcsec/hr, Dec 103.22 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
2 x 60s exposure (average combine), 3x3 binning, Clear Filter
2024-04-18 01:33 UT (#1209118-19)
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, Clear Filter
2024-04-18 01:37 UT (#1209118-24)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
Images of C/2021 S3 (PANSTARRS) on Comets 2024 Page >>    

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C/2023 A3 (Tsuchinshan-ATLAS) - Comet

C/2023 A3 (Tsuchinshan-ATLAS) - 2024-04-17
(passing through Virgo)
Sun Distance 2.94 AU (approaching)
Earth Distance 1.94 AU (290.7 million km)
   C/2023 A3 (Tsuchinshan-ATLAS) - 2024-04-17
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra -91.40 arcsec/hr, Dec 21.74 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
180s exposure (single frame), 3x3 binning, Clear Filter
2024-04-17 22:48 UT (#1209056)
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)
Image details as left
     
Images of C/2023 A3 Tsuchinshan-ATLAS on Comets 2024 Page >>    

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AT 2022omj - CV Type Transient (non-detection)

AT 2022omj (Leo)
AT 2022omj (Type: CV) discovered 2022-07-06.961 UT by ATLAS
Alias: ATLAS22tai
Discovery Magnitude 15.43 (orange-ATLAS)
vs Prior Non-Detection with Limiting Mag 18.68
 ( TNS 2022omj )

 
AT 2022omj - 2024-04-17 (T+650.9d)
Image below (2024-04-17.904) was taken 650.9 days after discovery of 2022omj
Position of reported transient (fading) is shown by white cross-hairs) is shown by white cross-hairs
Measured Magnitude +12.05 (Clear Filter)
It is uncertain if AT 2022omj  corresponds to the visible star
or probably more likely is an adjacent object
that has faded and is no longer visible.

Image

Annotated CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2024-04-17 21:45 UT (#1209028-32)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of AT 2022omj on Transients 2022 Page >>

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AT 2023sqn - CV Type Transient

AT 2023sqn (Libra)
AT 2023sqn (Type: CV) discovered 2023-09-11.789 UT by Gaia
Alias: Gaia23cjd
Discovery Magnitude 16.67 (G-Gaia Filter)
vs Historic Magnitude 20.14 +/- 0.25
~3.5 mag outburst in candidate CV MASTER OT J153519.70-063028.9
Gaia, 2023-09-11 18:56:38, mag 16.67
Gaia, 2024-01-19 01:24:19, mag 20.66
Gaia, 2024-01-19 03:10:54, mag 20.21
 ( TNS 2023sqn | Gaia23cjd )

 
AT 2023sqn - 2024-04-18 (T+219.3d)
Image below (2024-04-18.040) was taken 219.3 days after discovery of 2023sqn
Position of reported transient (not longer visible) is shown by white cross-hairs
Non-Detection, Limiting Magnitude +18.0 (G-Gaia Filter)
Transient is confirmed to have returned to its normal magnitude range

Image

Annotated CCD Image (100% size, linear scale, cropped)
4 x 60s exposure (average combine), 3x3 binning, Clear Filter
2024-04-18 01:01 UT (#1209104-07)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of AT 2023sqn on Transients 2023 Page >>

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AT 2024crd - Type Nova? Transient

AT 2024crd (Virgo)
AT 2024crd (Type: Nova?) discovered 2024-02-14.750 UT by Tadashi Kojima
Alias: TCP J13530185+0522000, Gaia24apm
Discovery Magnitude 13.2 (Clear Filter)
vs Prior Non-Detection Limiting Magnitude 15.2
Transient on faint blue PanSTARRS source
 ( TNS 2024crd | Gaia24apm )
 
AT 2024crd - 2024-04-17 (T+63.2d)
Image below (2024-04-17.944) was taken 63.2 days after discovery of 2024crd
Position of reported transient (brightening again) is shown by white cross-hairs 
Measured Magnitude +15.95 (Clear Filter)

Image

Annotated CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2024-04-17 22:42 UT (#1209049-53)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of AT 2024crd on Transients 2024 Page >>

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M101 - Spiral Galaxy with Type IIL Supernova 2023ixf

M101 with SN 2023ixf (Ursa Major)
SN 2023ixf (Type: IIL) discovered 2023-05-19.727 UT by Koichi Itagaki
Alias: ZTF23aaklqou, AT2023iyi, AT2023jgd, AT2023jfz, PSN J14033858+5418421, PS23dij
Discoverer Mag 14.9 (Clear filter)
 ( Rochester Supernova site | TNS 2023ixf )

SN 2023ixf (Type: IIL) discovered 2023-05-19.727 UT by Koichi Itagaki at Mag 14.9 is
located near M101's prominant star-forming region NGC 5461. 

SN 2023ixf (Type: IIL) discovered 2023-05-19.727 UT by Koichi Itagaki at Mag 14.9 is located near
M101's prominant star-forming region NGC 5461. 
The supernova resulted from a exploding red supergiant and lies just 21 million light years away.
 It's the closest core-collapse supernova to us since SN 1993J which lit up M81
(some 12 million ly away) in Spring 1993.
The SN is designated of type II-L (L for 'linear') , which is characterised by a
rapid rise to maximum brightness  followed by a slow and gradual decrease,
that is thought to be brought about by ejection of the dead stars' outer hydrogen shell.
(from Article "Summer's Super Supernova", AstNow Magazine, Sep 2023, pp 36-39)
M101 with SN 2023ixf - 2024-04-17 (T+334.2d)
Image below (2024-04-17.966) was taken 334.2 days after discovery of 2023ixf
Position of supernova (faint, fading slowly) is shown by white cross-hairs
Measured Magnitude +16.00 (Clear Filter)
Image
Annotated CCD Image (100% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2024-04-17 23:20 UT (#1209063-67)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
  
Images of SN 2023ixf (M101) on Supernova 2023 Page

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NGC 3206 - Spiral Galaxy with Type IIn Supernova 2024bch

NGC 3206 with SN 2024bch (Ursa Major)
SN 2024bch (Type: IIn) discovered 2024-01-29.252 UT by Patrick Wiggins
Alias: ATLAS24bmx, PS24aap, GOTO24hm
Discovery Magnitude 15.5 ( Clear Filter)
 ( TNS 2024bch )
 
NGC 3206 with SN 2024bch - 2024-04-17 (T+79.7d)
Image below (2024-04-17.984) was taken 79.7 days after discovery of 2024bch
Position of reported SN (faint, fading) is indicated by white cross-hairs.
Measured Magnitude +15.21 (Clear Filter)
Poor quality image (poor sky conditions, single frame)
Image
Annotated CCD Image (125% size, square root scale, cropped)
180s exposure (single frame), 3x3 binning, Clear Filter
2024-04-17 23:37 UT (#1209070)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
   
Images of SN 2024bch (in NGC 3206) on Supernova 2024 Page >>

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NGC 3690 - Spiral Galaxy with Type Ia Supernova 2023wrk

NGC 3690 with SN 2023wrk (Ursa Major)
SN 2023wrk (Type: Ia) discovered 2023-11-04.229 UT by GOTO
Alias: GOTO23bdo, ZTF23abpbdfm, ATLAS23vna
Discovery Magnitude 18.11 (L-GOTO filter)
 ( Rochester Supernova site ) ( TNS 2023wrk )
NGC 3690 with SN 2023wrk - 2024-04-18 (T+165.8d)
Image below (2024-04-18.000) was taken 165.8 days after discovery of 2023wrk
Position of SN (fading ?) is shown by white cross-hairs
Measured Magnitude +16.69 (C Filter)
Image
Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2024-04-18 00:08 UT (#1209077-81)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
  
Images of SN 2023wrk (in NGC 3690) on Supernovae 2023 Page >>

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NGC 5235 - Spiral Galaxy with Type Ia Supernova 2024grb

NGC 5235 with SN 2024grb (Virgo)
SN 2024grb (Type: Ia) discovered 2024-04-16.418 UT by ATLAS
Alias: ATLAS24fuq
Discovery Magnitude 18.33 (orange-ATLAS Filter)
vs Prior Non-Detection Limiting Magnitude 20.08
 ( TNS 2024grb )
 
NGC 5235 - Spiral Galaxy

Image

Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2024-04-17 22:25 UT (#1209042-46)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
NGC 5235 with SN 2024grb - 2024-04-17 (T+1.5d)
Image below (2024-04-17.928) was taken 1.5 days after discovery of 2024grb
Position of reported transient (faint) is shown by white cross-hairs 
Estimated Magnitude +17.0 (Clear Filter)

Image

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2024-04-17 22:25 UT (#1209042-46)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN 2024grb (in NGC 5235) on Supernovae 2024 Page >>

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NGC 6433 - Spiral Galaxy with Type Ia Supernova 2024efn

NGC 6433 with SN 2024efn (Hercules)
SN 2024efn (Type: Ia) discovered 2024-03-12.496 UT by CRTS
Alias: SNhunt463
Discovery Magnitude 19.0 (V-crts-CRTS Filter)
vs Prior Non-Detection Limiting Magnitude 21.0
 ( TNS 2024efn )
 
NGC 6433 with SN 2024efn - 2024-04-18 (T+36.6d)
Image below (2024-04-18.049) was taken 36.6 days after discovery of 2024efn
Position of reported supernova (fading slowly ?) is shown by white cross-hairs
Measured Magnitude +15.99 (Clear Filter)
Poor quality image (poor sky conditions, uneven background)
Image
Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2024-04-18 01:18 UT (#1209111-15)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN 2024efn (in NGC 6433) on Supernova 2024 Page >>

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UGC 8630 - Spiral Galaxy with Type II Supernova 2024drv

UGC 8630 with SN 2024drv (Canes Venatici)
SN 2024drv (Type: II) discovered 2024-03-02.513 UT by ATLAS
Alias: ATLAS24dct
Discovery Magnitude 16.56 (orange-ATLAS Filter)
vs Prior Non-Detection Limiting Mag 18.86
 ( TNS 2024drv )
 
UGC 8630 with SN 2024drv - 2024-04-17 (T+46.4d)
Image below (2024-04-17.911) was taken 46.4 days after discovery of 2024drv
Position of reported SN (distinct, fading slowly?) is indicated by white cross-hairs.
Measured Magnitude +15.44 (Clear Filter)
Image
Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2024-04-17 22:01 UT (#1209035-39)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN 2024drv (in UGC 8630) on Supernova 2024 Page >>

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