David's Astronomy Pages CCD Images - Session 759 (2020-03-04)

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Images (S760)

Objects	Session Notes
155P/Shoemaker - Comet C/2019 Y4 (ATLAS)  - Comet     Rose 17 - Compact Galaxy Cluster (PGC 3089521 et al)     Variable Stars (photometric monitoring)   - AM CVn, R CrB, U Gem, SS Her, U Her, RZ LMi, BL Lac, DY Per, GK Per, RR Tau     Nearby Stars (astrometric monitoring)  -HH And, Barnards Srae, DX Cnc, CN Leo	- All night session (7.7 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:  -3°C (min) (Dew heaters on auto) - CCD Temperature:  -25°C  (65% av. power) - Notes from 2020-03-04 >>

155P/Shoemaker - Comet

155P/Shoemaker - 2020-03-05 (passing through Leo) Sun Distance 2.16 AU Earth Distance 1.17 AU (175.5 million km)		155P/Shoemaker  - 2020-03-05, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -22.30 arcsec/hr, Dec 10.42 arcsec/hr)
Annotated CCD Image (50% size, linear scale) 3 x 60s exposure (average combine), 3x3 binning, C Filter 2020-03-05 00:16 UT (#759119-21) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		CCD Image (100% size, linear scale, cropped) 8 x 60s exposure (average combine), 3x3 binning, C Filter 2020-03-05 00:19 UT (#759119-27) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of 155P/Shoemaker on Comets 2020 Page >>

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C/2019 Y4 (ATLAS)  - Comet

C/2019 Y4 (ATLAS) - 2020-03-05 (passing through Ursa Major) Sun Distance 1.94 AU Earth Distance 1.19 AU (178.0 million km)		C/2019 Y4 (ATLAS)  - 2020-03-05, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -154.83  arcsec/hr, Dec 82.12 arcsec/hr)
CCD Image (50% size, square root scale) 2 x 60s exposure (average combine), 3x3 binning, C Filter 2020-03-05 04:22 UT (#759184-85) 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 2020-03-05 04:24 UT (#759184-90) 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 >>

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Rose 17 - Compact Galaxy Cluster (PGC 3089521 et al)

Rose 17 / PGC 3089521 et al (Bootes) Rose Catalogue [ Rose Compact Galaxy Groups ]

Annotated CCD Image (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2020-03-05 05:12 UT (#759209-13) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Rose 17 - Detail PGC 3089521 (catalog mag +16.4), PGC 50694 (catalog mag +17.0),  PGC 1720794 (catalog mag +16.7),  PGC 1720038 (catalog mag +17.2)

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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