David's Astronomy Pages
Images - Session 1137 (2023-09-01)

Objects Session Notes
Bullet C/2020 R7 (ATLAS) - Comet (Attempt)
   
Bullet UGC 2690 - Spiral Galaxy with Type II Supernova 2023nfg
Bullet UGC 3174 - Irregular Galaxy with Type IIb Supernova 2023mut
   
  - UGC 9002 w/SN2023pls , C/2022 L2 (ATLAS) & NGC 1461 w/AT2023och attempts failed (due to cloud, bright sky background / poor sky transparency, haze
   
Bullet Variable Stars (photometric monitoring)
- None
    
Bullet Nearby Stars (astrometric monitoring)
-  None
 
  
- Attempted all-night session (6.9 hrs),  interrupted by cloud
   
- 12" LX200 + ST-10XME for imaging
- TS 80mm APO + ZWO ASI178MC for guiding & imaging
- Ambient Temperature: 8°C (min)
- CCD Temperature:  -10°/-15° C
- Notes from 2023-09-01 >>
   
-  
   

C/2020 R7 (ATLAS) - Comet (Attempt)

C/2020 R7 (ATLAS) - 2023-09-01
 (passing through Corona Borealis)
Sun Distance 4.47 AU (receeding)
Earth Distance 4.75 AU (710.7 million km)
Expected position of comet (not visible) is shown by white circle
   C/2020 R7 (ATLAS) - 2023-09-01 Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 2.73 arcsec/hr, Dec -9.53 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2023-09-01 21:24 UT (#1137014-18)
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
     
 Images of C/2020 R7 (ATLAS) on Comets 2023 Page >>    

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UGC 2690 - Spiral Galaxy with Type II Supernova 2023nfg

UGC 2690 with SN 2023nfg (Cetus)
SN 2023nfg (Type: II) discovered 2023-07-15.334 UT by ATLAS
Alias: ATLAS23orz
Discovery Magnitude 18.34 ( orange-ATLAS Filter)
 ( TNS 2023nfg )
 
UGC 2690 with SN 2023nfg - 2023-09-02 (T+48.8d)
Image below (2023-09-02.124) was taken 48.8 days after discovery of 2023nfg
Position of reported SN (not separately distinguishable) is indicated by white cross-hairs.
Measured Magnitude +15.64 (nucleus + SN)
Image
Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2023-09-02 03:07 UT (#1137042-46)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
  
Images of SN 2023nfg (in UGC 2690) on Supernova 2023 Page >>

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UGC 3174 - Irregular Galaxy with Type IIb Supernova 2023mut

UGC 3174 with SN 2023mut (Orion)
SN 2023mut (Type: IIb) discovered 2023-07-11.180 UT by ASAS-SN
Alias: ASASSN-23fh
Discovery Magnitude 15.2 (g-Sloan Filter)
 ( TNS 2023mut )
 
UGC 3174 with SN 2023mut - 2023-09-02 (T+52.9d)
Image below (2023-09-02.112) was taken 52.9 days after discovery of 2023mut
Position of reported SN (indistinct) is indicated by white cross-hairs.
Measured Magnitude +14.91 (nucleus + SN)
Image
Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2023-09-02 02:48 UT (#1137035-38)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
  
Images of SN 2023mut (in UGC 3174) on Supernova 2023 Page >>

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