David's Astronomy Pages CCD Images - Session 839 (2020-12-17)

Images (S838)

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Images (S840)

Objects	Session Notes
UGC 10909 - Spiral Galaxy (PGC 60514)     Variable Stars (photometric monitoring) - None     Nearby Stars (astrometric monitoring) - None	- Short evening session (0.5 hours) - Main aims of the session were the acquisition of a selection of variable star, nearby star and comet targets and deep sky targets before expected cloud arrived. - 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 2020-12-17 >>      -

UGC 10909 - Spiral Galaxy (PGC 60514)

UGC 10909 (Hercules) Alias: PGC 60514 (catalog mag +15.6) Poor quality image due to poor sky conditions / developing cloud.  Target to be re-scheduled for a future session.

Annotated CCD Image (50% size, linear scale) 2 x 180s exposure (average combine), 3x3 binning, C Filter 2020-12-17 18:46 UT (#839003-04) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 10909 - Detail, 2020-12-17 Attempted image of AT2020abkz (Type: unknown) a candidate SN discovered 2020/12/01.625 UT by Gaia ( Rochester Supernova site ) No indication of any transient object in seen in image below (as compared to DSS2 image in Aladin) but image is poor due to poor skies conditions with poor transparency & developing cloud  (only 2 frames out of 5 frames taken were usable)

CCD Image (150% size, linear scale, cropped) Image details as above

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