David's Astronomy Pages CCD Images - Session 838 (2020-12-03)

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Images (S839)

Objects	Session Notes
AT2020abfx, outburst of known CV (DH Aql) - Variable Star (CV)     Variable Stars (photometric monitoring) - RX     Nearby Stars (astrometric monitoring) - HH	- Short session (0.3 hours) - Main aims of the session were the acquisition of a selection of variable star, nearby star and comet targets and deep sky targets if possible (allowing for bright moonlit skies and 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 2020-12-03 >>      -

AT2020abfx, outburst of known CV (DH Aql) - Variable Star (CV)

AT2020abfx (Aquila) Alias: Gaia20fml,  DH Aql (known CV) AT2020abfx (Type: CV) discovered 2020-11-28.591 UT by Gaia Magnitude at discovery +12.53 vs normal magnitude +17.3 to +18.6  ( Rochester Supernova site | Discovery image | )

AT2020abfx / DH Aql, 2020-12-03 (T+5.2d) Image below (2020-12-03.752) was taken 5.2 days after discovery of SN 2020scc CV is shown by white cross hairs.  Measured magnitude +13.0

Annotated CCD Image (50% size, linear scale) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2020-12-03 18:03 UT (#838003-07) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT2020abfx / DH Aql - Detail, 2020-12-03 (T+5.2d)

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

CCD Image (100% size, linear scale, cropped) 10s exposure (single frame), 3x3 binning, C Filter 2020-12-03 17:52 UT (#838002) 12" LX200R (at f/10.4) + ST-10XME

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