David's Astronomy Pages CCD Images - Session 708 (2019-10-11)

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C/2018 N2 (ASASSN) - Comet     Variable Stars (photometric monitoring)   - RX And, Z And, TV Cas, S Cyg, SS Cyg, AM Her, BL Lac, CY Lyr, DY Per, GK Per, FG Sge, X Tri     Nearby Stars (astrometric monitoring)  - HH And, Groombridge 34 - Teegardens Star attempt failed (due to cloud)

- Night session (4.9 hours) Session operated in fully automated mode with  monitoring during the first 2 hours - Main aim of the session was to take images of selected comets & deep sky targets and to checkout bug fixes to AstroMain / AstroGuard, and use observatory in 'RainTrim' mode for first time.     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature:  Dropping from 10.5°C to  7.0°C (min) before climbing later to 9°C as cloud developed (Dew heaters on automated) - CCD Temperature:  -15°C  (66% av. power) - Notes from 2019-10-11 >>

C/2018 N2 (ASASSN) - Comet

C/2018 N2 (ASASSN) (passing through Triangulum) Sun Distance 3.14 AU Earth Distance 2.22 AU (332.7 million km)

CCD Image (50% size, square root scale) 6 x 45s exposure (average combine), 3x3 binning, C Filter 2019-10-11 22:44 UT (#708172-79) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

C/2018 N2 (ASASSN)  - Detail, 20:48 UT

CCD Image (100% size, square root scale, cropped) 6 x 45s exposure (average combine), 3x3 binning, C Filter 2019-10-11 20:48 UT (#708064-69) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

C/2018 N2 (ASASSN)  - Detail, 2 hours later, 22:44 Comet has moved 2'30" in 1h 56m (i.e. motion of 77 arc sec/hour)

CCD Image (100% size, square root scale, cropped) 6 x 45s exposure (average combine), 3x3 binning, C Filter 2019-10-11 22:44 UT (#708172-79) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of C/2018 N2 (ASASSN) on Comets 2019 Page >>

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