David's Astronomy Pages
Images - Session 1036 (2022-09-12)

Objects Session Notes
Bullet AT2022kl - Variable Star Outburst (V381 Lac)
Bullet AT2022tru - CV Type Transient
   
Bullet CGCG 373-018 - Galaxy with Type Ia Supernova 2022osg
   
Bullet M71 - Globular Cluster
   
Bullet Variable Stars (photometric monitoring)
- BL Lac
    
Bullet Nearby Stars (astrometric monitoring)
- None
  
- Evening session (1.5h) . Sky became overcast and remained so until dawn.
   
- 12" LX200 + ST-10XME for imaging
- TS 80mm APO + ZWO ASI178MC for guiding & imaging
- Ambient Temperature: 10°C (min)
- CCD Temperature:  -10°C
- Notes from 2022-09-12 >>
 
   
   

AT2022kl - 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,   V381 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 )
Image
Annotated CCD Image (50% size, linear scale)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2022-09-12 21:22 UT (#1036030-34)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
  
AT 2022kl / V0381 Lac - 2022-09-12 (T+245.0d)
Image below (2022-09-12.888) was taken 245.0 days after discovery of 2022kl
Position of reported transient (bright) is shown by white cross-hairs
Measured magnitude +
Image
Annotated CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2022-09-12 21:22 UT (#1036030-34)
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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AT2022tru - 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 )
Image
Annotated CCD Image (50% size, linear scale)
2 x 180s exposure (average combine), 3x3 binning, Clear Filter
2022-09-12 21:33 UT (#1036037-38)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
  
AT 2022tru - 2022-09-12 (T+5.5d)
Image below (2022-09-12.894) was taken 5.5 days after discovery of 2022tru
Position of reported transient (bright) is shown by white cross-hairs
Measured magnitude +14.50
Image
Annotated CCD Image (100% size, linear scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, Clear Filter
2022-09-12 21:33 UT (#1036037-38)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
  
AT 2022tru / V381 Lac - 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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CGCG 373-018 - Galaxy with Type Ia Supernova 2022osg

CGCG 373-018 with SN 2022osg (Aquila)
SN 2022osg (Type: Ia) discovered 2022-07-12.351 UT by ZTF
Alias: ZTF22aasycgf
 ( Rochester Supernova site | TNS 2022osg )
Image
Annotated CCD Image (50% size, square root scale)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2022-09-12 20:56 UT (#1036018-21)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
  
CGCG 373-018 with SN 2022osg - 2022-09-12 (T+62.5d)
Image below (2022-09-12.867) was taken 62.5 days after discovery of 2022osg
Position of reported SN (indistinct/faded ?) is shown by white cross-hairs
Image
Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2022-09-12 20:56 UT (#1036018-21)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
  
Images of SN 2022osg (CGCG 373-018) on Supernovae 2022 Page >>
  

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M71 - Globular Cluster

M71 (Sagitta)
[ Globular Star Clusters ] [ Messier Objects  ]
Image
Annotated CCD Image (70% size, log scale)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2022-09-12 20:37 UT (#1036008-13)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
  
M71 - Detail
Image
CCD Image (100% size, log scale, cropped)
Image details as above
  
M71 - Earlier Image (2007)
Image
CCD Image (linear scale)
3 x 60 sec exposure (average combine), 2x2 binning C, Filter
2007-08-23  00:03 h UT (#206167-69)
8" LX200 Classic + ST-7E
  

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