David's Astronomy Pages
Images - Session 1041 (2022-09-23)

Objects Session Notes
Bullet AT 2022kl - Variable Star Outburst (V0381 Lac)
Bullet AT 2022tmq - Type HPM Transient
Bullet AT 2022tqu - Type Nova Transient
Bullet AT 2022tru - CV Type Transient
   
Bullet M31 2022-09a? - Candidate Extragalactic Nova in M31  (Unconfirmed)
   
Bullet NGC 5894 - Spiral Galaxy with Type II Supernova 2022pgf
Bullet NGC 6745 - Spiral Galaxy with Type IIn Supernova 2022prr
Bullet PGC 68943 - Spiral Galaxy (LEDA 68943)
   
Bullet UGC 3923 - Spiral Galaxy with Transient AT 2022rqc
   
  - Jupiter attempt failed (due to cloud)
   
Bullet Variable Stars (photometric monitoring)
- SS Cyg, BL Lac
    
Bullet Nearby Stars (astrometric monitoring)
- HH And, EV Lac, Teegardens Star
  
- Post-midnight session (5.4h). Partially interrupted by cloud.
   
- 12" LX200 + ST-10XME for imaging
- TS 80mm APO + ZWO ASI178MC for guiding & imaging
- Ambient Temperature: 6°C (min)
- CCD Temperature:  -15° C
- Notes from 2022-09-23 >>
 
   
   

AT 2022kl - Variable Star Outburst (V0381 Lac)

AT 2022kl (Lacerta)
AT 2022kl (Type: CV) discovered 2022-01-10.882 UT by MASTER
Alias: MASTER OT J221558.82+422247.1,   V0381 Lac (Carbon Star)
Pre-Print : The variable V381 Lac and its possible connection
with the R CrB phenomenon (https://arxiv.org/pdf/1512.00146v1.pdf)
Discovery Magnitude +13.6 vs pre-discovery mag > +20.2 (VegaMag)
 ( TNS 2022kl )
  
AT 2022kl / V0381 Lac - 2022-09-24 (T+256.2d), V Band Image
Image below (2022-09-24.058) was taken 256.2 days after discovery of 2022kl
Measured magnitude  : TBA
Note: Mag estimate is uncertain due to V0381 Lac's deep red (high B-V) colour)
Image
Annotated CCD Image (100% size, linear scale, cropped)
2 x 60s exposure (average combine), 3x3 binning, V Filter
2022-09-24 01:24 UT (#1041068-69)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
  
AT 2022kl / V0381 Lac - Reference Image
Transient object is indicated by magenta cross-hairs
Image
Pan STARRS Background Image captured via Aladin
  
Images of AT 2022kl on Transients 2022 Page >>

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AT 2022tmq - Type HPM Transient

AT 2022tmq (Cancer)
AT 2022tmq (Type: HPM) discovered 2022-09-03.508 UT by ZTF
Alias: ZTF22abfbpfg
Discovery Magnitude +16.6 VegaMag (prior non-detection >+20.1)
 ( TNS 2022tmq )
  
AT 2022tmq - 2022-09-24 (T+20.7d)
Image below (2022-09-24.169) was taken 20.7 days after discovery of 2022tmq
Measured Magnitude +11.49
Image
Annotated CCD Image (100% size, linear scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter
2022-09-24 04:09 UT (#1041142-44)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
  
AT 2022tmq - Reference Image
Position of reported transient is shown by purple cross-hairs
Object is presumed to be a brightening and movement of the dim star
that lies 30" to SE of the star's current position
Image
DSS2 Colour Image captured via Aladin
  
Images of AT 2022tmq on Transients 2022 Page >>

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AT 2022tqu - Type Nova Transient

AT 2022tqu (Auriga)
AT 2022tqu (Type: Nova) discovered 2022-09-06.418 UT by Kumar
Alias: GEOTS-2022-013
Discovery Magnitude +12.7 (Clear Filter)
 ( TNS 2022tqu )
  
AT 2022tqu - 2022-09-24 (T+17.7d)
Image below (2022-09-24.135) was taken 17.7 days after discovery of 2022tqu
Position of Transient (distinct) is shown by white cross-hairs
Measured Magnitude +14.87 (aperture 8)
Image
Annotated CCD Image (100% size, linear scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter
2022-09-24 03:22 UT (#1041130-34)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
  
Images of AT 2022tqu on Transients 2022 Page >>

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AT 2022tru - CV Type Transient

AT 2022tru (Pegasus)
AT 2022tru (Type: CV) discovered 2022-09-07.406 UT by ZTF
Alias: ZTF22abfjnpj
Discovery Magnitude +13.09 vs prior non-detection mag > +16.62 (ABMag)
Classification : 'The spectrum is blue continuum with Balmer lines
at z=0 and resembles that of a cataclysmic variable'
 ( TNS 2022tru )
  
AT 2022tru - 2022-09-24 (T+16.6d)
Image below (2022-09-24.014) was taken 16.6 days after discovery of 2022tru
Position of reported transient (distinct) is shown by white cross-hairs
Measured magnitude +15.44 (aperture 8)
Image
Annotated CCD Image (100% size, linear scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter
2022-09-24 00:29 UT (#1041027-31)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
  
AT 2022tru - Reference Image
Position of transient object (not visible in PanSTarrs Image)
is indicated by faint purple cross-hairs
Image
Pan STARRS Background Image captured via Aladin
  
Images of AT 2022tru on Transients 2022 Page >>

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M31 2022-09a? - Candidate Extragalactic Nova in M31 (Unconfirmed)

M31 with Nova M31 2022-09a? (Andromeda)
Nova M31 2022-09a? (Type:EGN ? ) discovered 2022-09-08.205 UT by Jingyuan Zhao
Alias: PNV J00425234+4116130, M31N 1926-07c)
 
Nova M31 2022-09a? - 2022-09-24 (T+15.8d)
Image below (2022-09-24.000) was taken 15.8 days after discovery of Nova M31 2022-09a?
Position of reported transient / nova (not visible / not disinguishable) is shown by white cross hairs.
Image
Annotated CCD Image  (100% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2022-09-24 00:09 UT (#1041019-23)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of Nova M31 2022-09a? (M31) on Transients 2022 Page >>
 

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NGC 5894 - Spiral Galaxy with Type II Supernova 2022pgf

NGC 5894 with SN 2022pgf (Draco)
SN 2022pgf (Type: II) discovered 2022-07-22.285 UT by ZTF
Alias: ZTF22aauurbv, ATLAS22vul, PS22gvc
 ( Rochester Supernova site | TNS 2022pgf )
 
NGC 5894 with SN 2022pgf - 2022-09-24 (T+63.9d)
Image below (2022-09-24.183) was taken 63.9 days after discovery of 2022pgf
Position of reported transient (bright) is shown by white cross-hairs
Measured Magnitude +14.85
Image
Annotated CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2022-09-24 04:30 UT (#1041148-51)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
  
Images of SN 2022pgf (NGC 5894) on SN 2022 Page >>

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NGC 6745 - Spiral Galaxy with Type IIn Supernova 2022prr

NGC 6745 with SN 2022prr (Lyra)
SN 2022prr (Type: IIn) discovered 2022-07-27.300 UT by ASAS-SN
Alias: ASASSN-22jne
Discovery Mag +17.3
 ( Rochester Supernova site | TNS 2022prr )
 
NGC 6745 with SN 2022prr - 2022-09-23 (T+58.7d)
Image below (2022-09-23.978) was taken 58.7 days after discovery of 2022prr
Position of SN (bright) is shown by white cross-hairs
Measured magnitude +14.88
Poor quality image (single sub-frame only, declining sky transparency due to cloud)
Image
Annotated CCD Image (150% size, square root scale, cropped)
180s exposure (single frame), 3x3 binning, Clear Filter
2022-09-23 23:28 UT (#1041006)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
  
Images of SN 2022prr (NGC 6745) on Supernovae 2022 Page >>

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PGC 68943 - Spiral Galaxy (LEDA 68943)

PGC 68943 (Pegasus)
Alias: LEDA 68943, MCG+03-57-010
Catalog Mag +15.3
Image
Annotated CCD Image (50% size, square root scale)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter
2022-09-24 00:29 UT (#1041027-31)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
PGC 68943 - Detail
Adjacent Faint Galaxies:
AGC 322985,  WISEA J222819.76+193152.3
Image
Annotated CCD Image (150% size, square root scale, cropped)
Image details as above
  

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UGC 3923 - Spiral Galaxy with Type Ia Supernova 2022rqc

UGC 3923 with SN 2022rqc (Lynx)
SN 2022rqc (Type: Ia)  discovered 2022-08-20.487 UT by ZTF
Alias: ZTF22abbozja
 ( Rochester Supernova site | TNS 2022rqc )
 
UGC 3923 - Spiral Galaxy
  
UGC 3923 with SN 2022rqc - 2022-09-24 (T+34.7d)
Image below (2022-09-24.151) was taken 34.7 days after discovery of 2022rqc
Position of reported tranisent is shown by white cross-hairs
Measured magnitude +15.00 (nucleus + transient)  (aperture 8)
Image
Annotated CCD Image (150% size, square root scale, cropped)
180s exposure (single frame), 3x3 binning, C Filter
2022-09-24 03:38 UT (#1041137)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
  
Images of SN 2022rqc (UGC 3923) on Supernova 2022 Page >>

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