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

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Images (S1037)

Objects	Session Notes
AT2022kl - Variable Star Outburst (V381 Lac) AT2022tru - CV Type Transient     CGCG 373-018 - Galaxy with Type Ia Supernova 2022osg     M71 - Globular Cluster     Variable Stars (photometric monitoring) - BL Lac      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 >>    [ Local Files >> ]

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 )

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 +

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

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 )

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

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

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 )

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

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  ]

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

CCD Image (100% size, log scale, cropped) Image details as above

M71 - Earlier Image (2007)

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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