David's Astronomy Pages CCD Images - Session 744 (2020-01-20)

Images (S743)

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Images (S745)

Objects	Session Notes
C/2018 N2 (ASASSN) - Comet     NGC 185 (Local Group) - Elliptical Galaxy (Caldwell 18)     SHK 21 - Faint Galaxy Group (PGC 1111429 et al) SHK 84 - Faint Galaxy Group (PGC 1336278 et al)     Variable Stars (photometric monitoring)   - None     Nearby Stars (astrometric monitoring)  - None	- Early evening session (1.4 hours total). - Main aims of the session was to acquire a selection of deep sky objects.     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature:  4°C (min) (Dew heaters on auto) - CCD Temperature:  -20°C  (69% av. power) - Notes from 2020-01-20 >>

C/2018 N2 (ASASSN)  - Comet

C/2018 N2 (ASASSN) - 2020-01-20  (passing through Andromeda) Sun Distance 3.20 AU Earth Distance 3.27 AU (488.9 million km)		C/2018 N2 (ASASSN)  - 2020-01-20, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 12.25, Dec 14.09 arcsec/hr)
CCD Image (50% size, square root scale) 5 x 45s exposure (average combine), 3x3 binning, C Filter 2020-01-20 19:09 UT (#744026-30) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		CCD Image (100% size, square root scale, cropped) Image details as left
Images of C/2018 N2 (ASASSN) on Comets 2019 Page >>

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NGC 185 (Local Group) - Elliptical Galaxy (Caldwell 18),  2.3 mly

NGC 185 / Caldwell 18 (Cassiopeia)

CCD Image (50% size, linear scale 6 x 180s exposure (average combine), 3x3 binning, DB Filter 2020-01-20 18:49 UT (#744017-22) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 185 - Detail

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

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

NGC 185 - Earlier Image (2011)

CCD Image (100% size, cropped) 3 x 120s sec exposure (average combine), 3x3 binning, C Filter 2011-01-29 19:41 h UT (#451045-47) 12" LX200R  (at f/9.7) + ST-10XME

NGC 185 - Earlier Image (2004)

CCD  Image,  4 x 60 sec exposure (average combine), C filter 2004-09-01  00:13 to 00:18h UT (#69088-91) 8" LX200 + ST-7e

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SHK 21 - Faint Galaxy Group (PGC 1111429 et al)

SHK 21 /  PGC 1111429 et al (Pisces) Shakhbazian Group

Annotated CCD Image (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2020-01-20 18:24 UT (#744010-14) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SHK 21 - Detail   PGC 1111429 (catalog mag +16.5)  PGC 1111736 (catalog mag +17.4)

Annotated CCD Image (125% size, square root scale, cropped) Image details as above

Negative CCD Image (125% size, square root scale, cropped) Image details as above

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SHK 84 - Faint Galaxy Group (PGC 1336278 et al)

SHK 84 / PGC 1336278 et al (Pisces) Shakhbazian Group

Annotated CCD Image (50% size, linear scale) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2020-01-20 18:05 UT (#744003-07) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SHK 84 - Detail  PGC 1336278 (catalog mag +16.7)  PGC 1336363 (catalog mag +17.1)

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

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

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