David's Astronomy Pages
Images - Session 1124 (2023-07-30)

Objects Session Notes
Bullet M33 - Spiral Galaxy with Transient AT 2023nou
Bullet NGC 513 - Spiral Galaxy with Transient AT 2023jpp (Attempt)
   
M101 w/SN2023ixf , NGC 5297 w/AT2023mlt, UGC 9350 w/SN2023nny,  AT2023cur &  AT2023cvz attempts failed (due to bad focus)
   
Bullet Variable Stars (photometric monitoring)
- Z And, BL Lac, V Sge
    
Bullet Nearby Stars (astrometric monitoring)
-  None
 
Barnards Star attempt failed (due to bad focus)
  
- All night session (3.5 hrs).  Images from first 7 targets were out-of-focus and were rejected. This was due to a major change in focus / atmosphere from the previous session and a QC Check Rejection of the Best Focus Measurement for Near Zenith Focus Field at the start of the session
   
- 12" LX200 + ST-10XME for imaging
- TS 80mm APO + ZWO ASI178MC for guiding & imaging
- Ambient Temperature: 7.5°C (min)
- CCD Temperature:  -10° / -15° C
- Notes from 2023-07-30 >>
   
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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
Cam2 Reference Image, Position of AT 2023nou is shown by blue circle
Limits of M33 Spiral Galaxy is shown by white ellipse

Image

Annotated CMOS Image (16% size)
(10s exposure, 1x1 binning)
2023-07-31 01:50 UT (02:50 LT)
TS 80mm APO, ZWO ASI178MC
 
M33 with AT 2023nou - 2023-07-31 (T+10.6d)
Image below (2023-07-31.078) was taken 10.6 days after discovery of 2023nou
Position of reported transient (faint) is shown by white circle

Image

Annotated CCD Image (50% size, square root scale)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2023-07-31 02:00 UT (#1124120-23)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
M33 with AT 2023nou - 2023-07-31 (T+10.6d)
Image below (2023-07-31.078) was taken 10.6 days after discovery of 2023nou
Position of reported transient (faint) is shown by white cross-hairs 
Measured Magnitude +16.98

Image

Annotated CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2023-07-31 02:00 UT (#1124120-23)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
AT 2023nou - Reference Image
Position of reported transient is shown by mauve cross-hairs 
Object appears to be a previously known star visible in DSS2 Colour image

Image

DSS2 Image captured in Aladin
 
Images of AT 2023nou (in M33) on Transients 2023 Page >>

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NGC 513 - Spiral Galaxy with Transient AT 2023jpp (Attempt)

NGC 513 with AT 2023jpp (Andromeda)
AT 2023jpp (Type: unk) discovered 2023-05-28.474 UT by ZTF
Alias: ZTF23aamgeom
Discovery Magnitude 17.57 (r-ZTF Filter)
 ( TNS 2023jpp )

 
NGC 513 with adjacent galaxies
NGC 513 (alias  PGC 5174, catalog mag +13.4),
PGC 5134 (catalog mag +15.6),
 PGC 212749 (catalog mag +16.9),  PGC 212747 (catalog mag ?)

Image

Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2023-07-31 01:41 UT (#1124113-17)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
NGC 513 - Detail

Image

Annotated Negative CCD Image (150% size, log scale, cropped)
Image details as above
 
NGC 513 with AT 2023jpp - 2023-07-31 (T+63.6d)
Image below (2023-07-31.064) was taken 63.6 days after discovery of 2023jpp
Position of reported transient (not visible) is shown by white cross-hairs 

Image

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2023-07-31 01:41 UT (#1124113-17)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of 2023jpp (in NGC 513) on Transients 2023 Page >>

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