David's Astronomy Pages
Images - Session 1111 (2023-04-10)

Objects Session Notes
Bullet 81/P Wild - Comet
Bullet 29P/Schwassmann-Wachmann - Comet
   
Bullet IC 4305 - Elliptical Galaxy with Type Ia Supernova 2023edc
Bullet NGC 2708 - Spiral Galaxy with Type Ia Supernova 2023bee
Bullet NGC 3799 - Spiral Galaxy with Type TDE Transient AT 2023clx
Bullet NGC 4235 - Spiral Galaxy with Transient AT 2022aanc
Bullet NGC 5915 - Spiral Galaxy with Type Ia Supernova 2023cpt
   
- UGC 6674 w/SN2023bvi , AT2023ctx & C/2022 A2 (PANSTARRS) attempts failed (due to cloud)
   
Bullet Variable Stars (photometric monitoring)
- None
    
- SS Cyg attempt failed (due to cloud)
    
Bullet Nearby Stars (astrometric monitoring)
-  None
  
- Attempted all night session (6.1 hours) interrupted by cloud on sevral occasions. Some targets/images affected by cloud.
   
- 12" LX200 + ST-10XME for imaging
- TS 80mm APO + ZWO ASI178MC for guiding & imaging
- Ambient Temperature: 5°C (min)
- CCD Temperature:    -20°C
- Notes from 2023-04-10 >>
 
   
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81/P Wild - Comet

81P/Wild - 2023-04-11
(passing through Sagittarius)

Sun Distance 1.95 AU  (receeding)
Earth Distance 1.32 AU (197.9 million km)
   81P/Wild - 2023-04-11 Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 21.63 arcsec/hr, Dec 2.79 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
3 x 60s exposure (average combine), 3x3 binning, Clear Filter
2023-04-11 03:32 UT (#1111091-93)
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)
12 x 60s exposure (average combine), 3x3 binning, Clear Filter
2023-04-11 03:38 UT (#1111091-102)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
Images of 81/P Wild on Comets 2016 Page >>    
Images of 81/P Wild on Comets 2022 Page >>    
Images of 81/P Wild on Comets 2023 Page >>    

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29P/Schwassmann-Wachmann - Comet

29P/Schwassmann-Wachmann - 2023-04-10
(passing through Gemini)

Sun Distance 6.09 AU (receeding)
Earth Distance 6.26 AU (937.2 million km)
Poor quality image (wind/poor guiding, 2 sub-frames only)
   29P/Schwassmann-Wachmann - 2023-04-10 Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 16.73 arcsec/hr, Dec -3.62 arcsec/hr)
Poor quality image (wind/poor guiding, 2 sub-frames only)
Image   Image
Annotated CCD Image (50% size, square root scale)
2 x 60s exposure (average combine), 3x3 binning, Clear Filter
2023-04-10 22:22 UT (#1111017-23)
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 60s exposure (average combine), 3x3 binning, Clear Filter
2023-04-10 22:22 UT (#1111017-23)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
Images of 29P/Schwassmann-Wachmann on Comets 2023 Page >>    

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IC 4305 - Elliptical Galaxy with Type Ia Supernova 2023edc

IC 4305 with SN 2023edc (Canes Venatici)
SN 2023edc (Type: Ia) discovered 2023-03-28.518 UT by PS1
Alias: PS23bcb
Discovery Mag 18.12 (w-PI Filter)
 ( Rochester Supernova site | TNS 2023edc )
 
IC 4305 with SN 2023edc - 2023-04-10 (T+13.5d)
Image below (2023-04-10.971) was taken 13.5 days after discovery of 2023edc
Position of reported SN (distinct) is shown by white cross-hairs
Image
Annotated CCD Image (150% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, Clear Filter
2023-04-10 23:21 UT (#1111044-45)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
  
Images of SN 2023edc (IC 4305) on Supernova 2023 Page >>

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NGC 2708 - Spiral Galaxy with Type Ia Supernova 2023bee

NGC 2708 with SN 2023bee (Hydra)
SN 2023bee (Type: Ia) discovered 2023-02-01.750 UT by DLT40
Alias: DLT23b, ZTF23aabtgej, ATLAS23bqm
Discovery Mag 17.26 (Clear filter)
 ( Rochester Supernova site | TNS 2023bee )
 
NGC 2708 with SN 2023bee - 2023-04-10 (T+68.2d)
Image below (2023-04-10.915) was taken 68.2 days after discovery of 2023bee
Position of reported SN (faint but still distinct) is shown by white cross-hairs
Measured magnitude  +15.26
Poor quality image (cloud/single frame)
Image
Annotated CCD Image (100% size, square root scale, cropped)
180s exposure (single frame), 3x3 binning, Clear Filter
2023-04-10 21:58 UT (#1111008)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
  
Images of SN 2023bee (NGC 2708) on Supernova 2023 Page >>

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NGC 3799 - Spiral Galaxy with Type TDE Transient AT 2023clx

NGC 3799 with AT 2023clx (Leo)
AT 2023clx (Type: TDE) discovered 2023-02-22.210 UT by ASAS-SN
Alias: ASASSN-23bd
Discovery Magnitude 16.3 (g-Sloan Filter)
Spectral features are very similar to a sample of previously-identified
TDEs (e.g., AT 2018hyz = ASASSN-18zj).
 ( TNS 2023clx )

 
NGC 3799 with AT 2023clx - 2023-04-10 (T+47.7d)
Image below (2023-04-10.941) was taken 47.7 days after discovery of 2023clx
Position of reported transient (not separately distinguishable) is shown by white cross-hairs 
Measured magnitude +13.95 (nucleus + TDE transient)

Image

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2023-04-10 22:44 UT (#1111028-32)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of AT 2023clx (NGC 3799) on Transients 2023 Page >>

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NGC 4235 - Spiral Galaxy with Transient AT 2022aanc

NGC 4235 with AT 2022aanc (Virgo)
AT 2022aanc (Type: unk) discovered 2022-11-12.536 UT by ZTF
Alias: ZTF22abugigx
 ( Rochester Supernova site | TNS 2022aanc )
 
NGC 4235 with AT 2022aanc - 2023-04-10 (T+149.4d)
Image below (2023-04-10.954) was taken 149.4 days after discovery of 2022aanc
Position of earlier transient (indistinguishable ) is shown by white cross-hairs
Measured magnitude +13.38
Image
Annotated CCD Image (100% size, log scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2023-04-10 23:03 UT (#1111035-39)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
  Images of AT 2022aanc (NGC 4235) on Transients 2022 Page >>

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NGC 5915 - Spiral Galaxy with Type Ia Supernova 2023cpt

NGC 5915 with SN 2023cpt (Libra)
SN 2023cpt (Type: Ia, z=0.00758) discovered 2023-02-27.356 UT by ATLAS
Alias: ATLAS23cxk
Discovery Mag 17.10 (cyan-ATLAS filter)
 ( Rochester Supernova site | TNS 2023cpt )
 
NGC 5915 with SN 2023cpt - 2023-04-11 (T+42.7d)
Image below (2023-04-11.027) was taken 42.7 days after discovery of 2023cpt
Position of reported SN (faint) is shown by white cross-hairs
Poor quality image (cloud/single frame)
Image
Annotated CCD Image (150% size, square root scale, cropped)
180s exposure (single frame), 3x3 binning, Clear Filter
2023-04-11 00:39 UT (#1111057)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
  
Images of SN 2023cpt (NGC 5915) on Supernova 2023 Page >>

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