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 CCD Images - Session 1133 (2023-08-21)

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Objects Session Notes
Bullet C/2019 T4 (ATLAS) - Comet
Bullet C/2023 E1 (ATLAS) - Comet
   
Bullet M33 - Spiral Galaxy with Transient AT 2023nou
   
  - M101 w/SN2023ixf attempt failed (due to bad guiding / poor sky transparency).
- NGC 2326 w/AT2023pgb atttempted failed(due to cloud)
   
Bullet Variable Stars (photometric monitoring)
- None
    
Bullet Nearby Stars (astrometric monitoring)
-  None
 
  
- Attempted all night session (3.3 hrs),  interupted by and ended early due to cloud.
   
- 12" LX200 + ST-10XME for imaging
- TS 80mm APO + ZWO ASI178MC for guiding & imaging
- Ambient Temperature: 15.5°C (min)
- CCD Temperature:  -10° C
- Notes from 2023-08-21 >>
   
   

C/2019 T4 (ATLAS) - Comet

C/2019 T4 (ATLAS) - 2023-08-21
(passing through Serpens)
Sun Distance 5.54 AU (receeding)
Earth Distance 5.69 AU (850.6 million km)		    C/2019 T4 (ATLAS) - 2023-08-21 Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 16.50 arcsec/hr, Dec -9.39 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
2 x 60s exposure (average combine), 3x3 binning, Clear Filter
2023-08-21 22:29 UT (#1133026-27)
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, Clear Filter
2023-08-21 22:29 UT (#1133026-27)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
 Images of C/2019 T4 (ATLAS) on Comets 2023 Page >>    

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C/2023 E1 (ATLAS) - Comet

C/2023 E1 (ATLAS) - 2023-08-21 pm
(passing through Pegasus)
Sun Distance 1.32 AU (receeding)
Earth Distance 0.38 AU (56.7 million km)		    C/2023 E1 (ATLAS) 2023-08-21 pm, Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 51.47 arcsec/hr, Dec -319.39 arcsec/hr)
Image   Image
Annotated CCD Image (50% size, square root scale)
45s exposure (single frame), 3x3 binning, Clear Filter
2023-08-21 22:01 UT (#1133005)
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, Clear Filter
2023-08-21 22:07 UT (#1133005-19)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
     
 Images of C/2023 E1 (ATLAS) on Comets 2023 Page >>    

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M33 - Spiral Galaxy with Transient AT 2023nou

M33 with AT 2023nou (Triangulum)
AT 2023nou (Type: unk) discovered 2023-07-20.435 UT by GEOTS
Alias: GEOTS-Balaji-2023-008, PNV J01335643+3043357
Discovery Magnitude 16.7 (Clear Filter)
Possible Nova in M33
 ( TNS 2023nou )
 
M33 with AT 2023nou - 2023-08-22 (T+32.6d)
Image below (2023-08-22.035) was taken 32.6 days after discovery of 2023nou
Position of reported transient (faint) is shown by whiIte cross-hairs
Measured Magnitude +16.82

Image
Annotated CCD Image (125% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter
2023-08-22 00:56 UT (#1133050-52)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Unusual Light Trail (Satellite ?) passing across M33
The amplitude of wiggles along trail (up to 15 pixels / 21 arc secs) is far greater
than can be explained by Telescope's Periodic Error on telescope or by Seeing

Image
Annotated CCD Image (125% size, square root scale, cropped)
180s exposure (single frame), 3x3 binning, Clear Filter
2023-08-22 00:54 UT (#1133051)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of AT 2023nou (in M33) on Transients 2023 Page >>

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This Web Page: CCD Images - Session 1133 (2022-08-21)
Last Updated : 2023-11-24
Site Owner : David Richards
Home Page : David's Astronomy Web Site