David's Astronomy Pages CCD Images - Session 761 (2020-03-10)

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Objects	Session Notes
C/2019 Y4 (ATLAS)  - Comet Frolov 1 - Open Cluster C/2018 N2 (ASASSN) - Comet     Variable Stars (photometric monitoring)   - Z And, AM CVn, SY Cnc, R CrB, CI Cyg, S Cyg, SS Cyg, U Gem, AM Her, SS Her, U Her, RZ LMi, BL Lac, CY Lyr, FU Ori, SU Tau, ER UMa     Nearby Stars (astrometric monitoring)  - DX Cnc, 61 Cyg, CN Leo - HH And, Barnards Star attempt failed (image link failed)	- All night session (7.2 hours total). - Main aims of the session was to  acquire images of a selection of deep sky and comet objects     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature:  2°C (min) (Dew heaters on auto) - CCD Temperature:  -20°C  (64% av. power) - Notes from 2020-03-10 >>

C/2019 Y4 (ATLAS)  - Comet

C/2019 Y4 (ATLAS) - 2020-03-11 (passing through Ursa Major) Sun Distance 1.84 AU Earth Distance 1.14 AU (171.1 million km)		C/2019 Y4 (ATLAS)  - 2020-03-11, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -201.14 arcsec/hr, Dec 69.54 arcsec/hr)
CCD Image (50% size, square root scale) 2 x 60s exposure (average combine), 3x3 binning, C Filter 2020-03-11 00:50 UT (#761142-43) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		CCD Image (100% size, log scale, cropped) 7 x 60s exposure (average combine), 3x3 binning, C Filter 2020-03-11 00:52 UT (#761142-48) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of C/2019 Y4 (ATLAS) on Comets 2020 Page >>

C/2019 Y4 (ATLAS) - 2020-03-11 passing across a background of distant 15th to 17th magnitude galaxies in Ursa Major PGC 30151 (catalog mag +15.3), PGC 30200 (catalog mag +15.6), PGC 30149 (catalog mag +16.2), PGC 30175 (catalog mag +16.4),  PGC 30155 (catalog mag +16.5), PGC 2662525 (catalog mag +16.6),  PGC 2662974 (catalog mag +17.0), PGC 2662281 (catalog mag +17.4)

Annotated CCD Image (50% size, square root scale) 2 x 60s exposure (average combine), 3x3 binning, C Filter 2020-03-11 00:50 UT (#761142-43) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

C/2019 Y4 (ATLAS) -  2020-03-11 Composite image showing 4.8 arc mins motion of comet over a 2.57 hour period (112 arcsec/hr,  0.750 deg/day)

Composite CCD Image (100% size, square root scale, cropped) Average of 2 frames each 2 x 60s exposure , 3x3 binning, C Filter 2020-03-11 00:50 UT (#761142-43) 2020-03-11 03:24 UT (#761270-71) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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Frolov 1 - Open Cluster

Frolov 1 (Cassiopeia) SAC Frolov 1, Saguaro Astronomy Club Database

CCD Image (70% size, linear scale) 9 x 30s exposure (average combine), 3x3 binning, C Filter 2020-03-11 01:29 UT (#761170-78) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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C/2018 N2 (ASASSN)  - Comet

C/2018 N2 (ASASSN) - 2020-03-11  (passing through Cassiopeia) Sun Distance 3.34 AU Earth Distance 3.84 AU (573.8 million km)		C/2018 N2 (ASASSN)  - 2020-03-11, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 25.01, Dec 22.53 arcsec/hr)
CCD Image (50% size, square root scale) 3 x 45s exposure (average combine), 3x3 binning, C Filter 2020-03-11 02:32 UT (#761223-25) 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) 9 x 45s exposure (average combine), 3x3 binning, C Filter 2020-03-11 02:34 UT (#761223-31) 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 >>
Images of C/2018 N2 (ASASSN) on Comets 2020 Page >>

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