David's Astronomy Pages CCD Images - Session 908 (2021-08-24)

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Objects	Session Notes
NGC 4896 - Elliptical Galaxy with Type Ia Supernova 2021wad NGC 5513 - Spiral Galaxy with Type Ia Supernova 2021wqi NGC 6184 - Spiral Galaxy with Type Ia Supernova 2021wkv      Variable Stars (photometric monitoring) - None - SS Cyg attempt failed (cloud)      Nearby Stars (astrometric monitoring) - None	- Late Evening Session (1.2 hours). - Session finished early due to cloud - Main aims of the session were to acquire a selection of targets as conditions allowed - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 12°C (min) - CCD Temperature:  -5°/-10°C - Notes from 2021-08-24 >>    [ Local Files >> ]   -

NGC 4896 - Elliptical Galaxy with Type Ia Supernova 2021wad

NGC 4896 with SN2021wad (Coma Berenices) SN 2021wad (Type: Ia, zhost=0.019864) discovered 2021/08/15.261 UT by ATLAS Alias: ATLAS21bgbp, Gaia21duy Magnitude +17.68 at discovery  (Rochester Supernova site, Gaia21duy )

NGC 4896 with SN2021wad (T+9.6d) NGC 4896 Elliptical Galaxy, alias UGC 8117 / PGC 44768 (catalog mag +13.9) with adjacent Galaxies :   PGC 44848 (catalog mag +14.9), PGC 44805 (catalig mag +15.7),   PGC 44750 (catalog mag +16.4) Note : satellite track crossing image close to NGC 4896

Annotated CCD Image  (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-08-24 21:29 UT (#908005-09) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 4896 with SN2021wad - 2021-08-24 (T+9.6d) Image below (2021-08-24.888) was taken 9.6 days after discovery of 2021wad SN position is shown by white cross-hairs. Measured mag ?  (unable to resolve SN using SExtractor/CCDSoft)

Annotated CCD Image  (125% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-08-24 21:29 UT (#908005-09) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2021wad (NGC 4896) on Supernovae 2021 Page >>

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NGC 5513 - Spiral Galaxy with Type Ia Supernova 2021wqi

NGC 5513 with SN 2021wqi (Bootes) SN 2021wqi : Type Ia (z=0.016724) discovered 2021/08/20.214 UT by Gaia Alias: Gaia21dxe Discovery Magnitude +17.68  (Rochester Supernova site, Gaia21duy )

NGC 5513 with SN 2021wqi (T+9.6d) NGC 5513 / PGC 50776, (catalog mag +14.9) with adjacent Galaxies :   NGC 5509 / PGC 50751 (catalog mag +14.1 or +15.1),  PGC 50761 (catalog mag +15.2)

Annotated CCD Image  (50% size, square root scaled) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-08-24 21:49 UT (#908013-17) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5513 with SN 2021wqi - 2021-08-24 (T+4.7d) Image below (2021-08-24.903) was taken 4.7 days after discovery of 2021wqi SN position is close to center of galaxy and is not individually recognisable Measured mag ?  (unable to resolve SN using SExtractor/CCDSoft)

Annotated CCD Image  (125% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-08-24 21:49 UT (#908013-17) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2021wqi (NGC 5513) on Supernovae 2021 Page >>

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NGC 6184 - Spiral Galaxy with Type Ia Supernova 2021wkv

NGC 6184 with SN 2021wkv (Hercules) SN 2021wkv (Type: Ia, zhost=0.027329) discovered 2021/08/20.277 UT by ATLAS Alias: ATLAS21bgqy.  Magnitude +18.2 at discovery  (Rochester Supernova site )

NGC 6184 with SN 2021wkv - 2021-08-24 (T+4.6d) Image below (2021-08-24.919) was taken 4.6 days after discovery of 2021wkv SN position is shown by white cross-hairs. Measured mag +16.2

Annotated CCD Image  (125% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-08-24 22:13 UT (#908020-24) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2021wkv (NGC 6184) on Supernovae 2021 Page >>

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