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CCD Images - Session 773 (2020-04-23)
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C/2019 Y4 (ATLAS) - Comet IC 2657 - Elliptical Galaxy, 2.10 Gly IC 2677 - Spiral Galaxy, 1.51 Gly IC 3278 - Spiral Galaxy, 1.24 Gly IC 4089 - Spiral Galaxy, 1.50 Gly UGC 4599 - Spiral Galaxy (PGC 24699) UGC 5708 - Spiral Galaxy (PGC 31037) Variable Stars (photometric monitoring) - AM CVn, ER UMa Nearby Stars (astrometric monitoring) - DX Cnc
- Evening session (3.2 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: 4°C (min)
(Dew heaters on auto)- CCD Temperature: -15°C (60% av. power) - Notes from 2020-04-23 >>
| C/2019 Y4 (ATLAS) - 2020-04-23 (passing through Camelopardalis) Sun Distance 1.03 AU (approaching) Earth Distance 0.96 AU (143.7 million km) |
C/2019 Y4 (ATLAS) - 2020-04-23, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -156.11 arcsec/hr, Dec -56.66 arcsec/hr) |
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| CCD Image (50% size, square root scale) 2 x 45s exposure (average combine), 3x3 binning, C Filter 2020-04-23 23:47 UT (#773069-70) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
CCD Image (100% size, log scale, cropped) 24 x 45s exposure (average combine), 3x3 binning, C Filter 2020-04-23 23:57 UT (#773069-93) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| Images of C/2019 Y4 (ATLAS) on Comets 2020 Page >> |
| C/2019 Y4 (ATLAS) - False Colour, 2020-04-23 |
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| False Color CCD Image (50% size, log scale) 24 x 45s exposure (average combine), 3x3 binning, C Filter 2020-04-23 23:57 UT (#773069-93) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| C/2019 Y4 (ATLAS) - 2020-04-23 |
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| CCD Image (150% size, linear scale, cropped) 24 x 45s exposure (average combine), 3x3 binning, C Filter 2020-04-23 23:57 UT (#773069-93) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| IC 2657 (Leo) Distant Galaxy. Distance 2.10 Gyr, z=0.1679 IC 2657 (catalog mag +15.2) with adjacent galaxies IC 2661 (catalog mag +17.0), PGC 1435752 (catalog mag +17.6), PGC 1437544 (catalog mag +17.7), PGC 1436728 (catalog mag +18.0), PGC 1435634 (catalog mag +18.1), PGC 1435924 (catalog mag +18.5) |
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| Annotated CCD Image (50% size, log scale) 3 x 180s exposure (average combine), 3x3 binning, C Filter 2020-04-23 21:33 UT (#773022-25) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| IC 2657 - Detail |
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| CCD Image (150% size, log scale, cropped) Image details as above |
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| Negative CCD Image (150% size, log scale, cropped) Image details as above |
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| IC 2677 (Leo) Distant Galaxy. Distance 1.51 Gyr, z=0.1167 4 satellites cut across field of view during 12 minutes total exposure (a fifth frame was excluded as a further satellite passed right over the target galaxy) |
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| Annotated CCD Image (50% size, square root scale) 4 x 180s exposure (average combine), 3x3 binning, C Filter 2020-04-23 22:17 UT (#773037-41) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| IC 2677 - Detail |
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| Annotated CCD Image (150% size, square root scale, cropped) Image details as above |
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| Negative CCD Image (150% size, square root scale, cropped) Image details as above |
| IC 2677 - Multiple Satellite Crossings Average of 5 x 180s frames (total exposure 15 mins) Every frame had a satellite crossing, including one where the satellite passed directly across the small target galaxy |
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| Annotated CCD Image (70% size,square root scale) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2020-04-23 22:17 UT (#773037-41) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| IC 2677 - Earlier Image (2020-04-18) Note: single frame only due to cloud, target is to be rescheduled |
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| Annotated CCD Image (150% size, square root scale, cropped) 180s exposure (single frame), 3x3 binning, C Filter 2020-04-18 22:30 UT (#769033) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| IC 3278 (Coma Berenices) Distant Galaxy Distance 1.24 Gyr, z=0.0939 IC 3278 (catalog mag +15.2) with adjacent galaxies IC 3262 (catalog mag +14.5), IC 3269 (catalog mag +16.2) |
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| Annotated CCD Image (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2020-04-23 23:09 UT (#773054-58) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| IC 3278 - Detail |
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| CCD Image (150% size, log scale, cropped) Image details as above |
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| Negative CCD Image (150% size, log scale, cropped) Image details as above |
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| IC 4089 (Coma Berenices) Distant Galaxy Distance 1.50 Gyr, z=0.1157 |
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| Annotated CCD Image (50% size, square root scale) 4 x 180s exposure (average combine), 3x3 binning, C Filter 2020-04-23 22:47 UT (#773047-51) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| IC 4089 - Detail |
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| Annotated CCD Image (150% size, square root scale, cropped) Image details as above |
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| Negative CCD Image (150% size, square root scale, cropped) Image details as above |
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| UGC 4599 / PGC 24699 (Cancer) Ring Galaxy, J.Lowrey List Target to be rescheuled in order to get better definition of the ring structure |
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| CCD Image (50% size, log scale) 3 x 180s exposure (average combine), 3x3 binning, C Filter 2020-04-23 21:33 UT (#773022-25) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| UGC 4599 - Detail Ring structure is faint but just visible |
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| CCD Image (100% size, log scale, cropped) Image details as above |
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| Negative CCD Image (100% size, log scale, cropped) Image details as above |
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| UGC 5708 (Sextans) Flat Galaxy Atlas Object UGC 5708 / PGC 31037 (catalog mag +14.2) |
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| Annotated CCD Image (50% size, square root scale) 4 x 180s exposure (average combine), 3x3 binning, C Filter 2020-04-23 23:34 UT (#773063-66) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| UGC 5708 - Detail |
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| CCD Image (100% size, log scale, cropped) Image details as above |
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| Negative CCD Image (100% size, log scale, cropped) Image details as above |
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| This Web Page: | CCD Images - Session 773 (2020-04-23) |
| Last Updated : | 2024-05-31 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |
