David's Astronomy Pages CCD Images - Session 809 (2020-09-16)

Images (S808)

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Images (S810)

Objects	Session Notes
UGC 695 - Dwarf Galaxy, 30 mly NGC 1346 - Spiral Galaxy     Variable Stars (photometric monitoring) - U And, DY Per, GK Per - TT Ari attempt failed due to cloud     Nearby Stars (astrometric monitoring) - HH And	- Night session (4.6 hours total) - Main aims of the session were the acquisition of a selection of deep sky targets if conditions allowed.  - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 10°C (min) - CCD Temperature:  -10/-15°C  - Notes from 2020-09-16 >>      -

UGC 695 - Dwarf Galaxy, 30 mly

UGC 695 (Cetus) Isolated dwarf galaxy (30 mly).   Alias:   PGC 4013,  LEDA 4013   UGC 695 is a low-surface-brightness (LSB) galaxy which make is pretty faint. These galaxies are so faint that their brightness is less than the background brightness of Earth’s atmosphere, which makes them tricky to observe. This low brightness is the result of the relatively small number of stars within them   Image affected by poor transparency & corner condensation/frost. Target to be rescheduled

CCD Image  (100% size, square root scale, cropped) 6 x 180s exposure (average combine), 3x3 binning, C Filter 2020-09-17 00:09 UT (#809007-12) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 (cf.  Hubble Picture - Hubble Glimpses Faint Galaxy, Sep 2019 )

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NGC 1346 - Spiral Galaxy

NGC 1346 (Eridanus) NGC 1346 and PGC 13005 / MCG-1-9-41

Annotated CCD Image  (50% size, square root scale) 4 x 180s exposure (average combine), 3x3 binning, C Filter 2020-09-17 03:30 UT (#809031-34) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 1346 and PGC 13005 - Detail

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

Negative CCD Image (100% size, square root scale, cropped) Image details as above

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