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CCD Images - Session 769 (2020-04-18)
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C/2019 Y4 (ATLAS) - Comet IC 2677 - Spiral Galaxy, 1.51 Gly IC 3389 - Elliptical Galaxy, 1.63 Gly IC 4000 - Spiral Galaxy, 1.45 Gly IC 4074 - Spiral Galaxy, 1.39 Gly IC 4481 - Spiral Galaxy, 1.44 Gly NGC 4448 - Spiral Galaxy (Herschel I-91) PGC 40901 - Spiral Galaxy UGC 7388 - Spiral Galaxy (PGC 39783) UGC 8025 - Spiral Galaxy (PGC 43863) Variable Stars (photometric monitoring) - R CrB, SS Her, U Her, CY Lyr Nearby Stars (astrometric monitoring) - Barnards Star, CN Leo
- All night session (5.7 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: 5°C (min)
(Dew heaters on auto)- CCD Temperature: -20°C (73% av. power) - Notes from 2020-04-18 >>
| C/2019 Y4 (ATLAS) - 2020-04-18 (passing through Camelopardalis) Sun Distance 1.13 AU (approaching) Earth Distance 0.98 AU (147.1 million km) |
C/2019 Y4 (ATLAS) - 2020-04-18, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -174.19 arcsec/hr, Dec -48.87 arcsec/hr) |
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| CCD Image (50% size, square root scale) 2 x 45s exposure (average combine), 3x3 binning, C Filter 2020-04-18 23:41 UT (#769054-55) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
CCD Image (100% size, log scale, cropped) 20 x 45s exposure (average combine), 3x3 binning, C Filter 2020-04-18 23:47 UT (#769047-71) 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) - 2020-04-18 |
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| CCD Image (100% size, square root scale, cropped) 2 x 45s exposure (average combine), 3x3 binning, C Filter 2020-04-18 23:41 UT (#769054-55) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| False Color CCD Image (50% size, log scale) 20 x 45s exposure (average combine), 3x3 binning, C Filter 2020-04-18 23:47 UT (#769047-71) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| C/2019 Y4 (ATLAS) - 2020-04-18 Indications of comet fragmentation |
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| CCD Image (100% size, linear scale, cropped) Unsharp Masked (um4) 13 x 45s exposure (average combine), 3x3 binning, C Filter 2020-04-18 23:47 UT (#769054-70) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| CCD Image (150% size, linear scale, cropped) Unsharp Masked (um4) Image details as above |
| C/2019 Y4 (ATLAS) - Earlier Image (2020-04-16) Indications of comet fragmentation |
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| CCD Image (150% size, linear scale, cropped) Unsharp Masked (um4) 25 x 45s exposure (average combine), 3x3 binning, C Filter 2020-04-16 21:29 UT (#768003-27) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| IC 2677 (Leo) Distant Galaxy. Distance 1.51 Gyr, z=0.1167 Note: single frame only due to cloud, target is to be rescheduled |
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| Annotated CCD Image (50% size, square root scale) 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 |
| IC 2677 - Detail |
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| Annotated CCD Image (150% size, square root scale, cropped) Image details as above |
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| IC 3389 (Coma Berenices) Distant Galaxy. Distance 1.63 Gyr, z=0.1267 [ Distant Galaxies ] Note: single frame captured only due to cloud, target is to be rescheduled for a later session. |
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| Annotated CCD Image (50% size, square root scale) 180s exposure (single frame), 3x3 binning, C Filter 2020-04-18 23:02 UT (#769037) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| IC 3389 - Detail Total exposure 3 min |
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| CCD Image (150% size, square root scale, cropped) Image details as above |
| IC 3389 - Later Image (Jan 2021) Total exposure 15 min |
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| CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-01-18 04:04 UT (#851063-67) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| IC 4000 (Canes Venatici) Distant Galaxy. Distance 1.45 Gyr, z=0.1112 |
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| Annotated CCD Image (50% size, square root scale) 4 x 180s exposure (average combine), 3x3 binning, C Filter 2020-04-18 22:16 UT (#769026-29) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| IC 4000 - Detail |
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| 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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| IC 4074 (Coma Berenices) Distant Galaxy : Distance 1.39 Gyr, z=0.1069 |
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| Annotated CCD Image (50% size, square root scale) 2 x 180s exposure (average combine), 3x3 binning, C Filter 2020-04-19 00:49 UT (#769089-91) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| IC 4074 - Detail |
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| 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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| IC 4481 (Bootes) Distant Galaxy: Distance 1.44 Gyr, z=0.1107) IC 4481 (catalog mag +12.4) with adjacent galaxies : PGC 1501285 (catalog mag +17.2), PGC 1502500 (catalog mag +17.6), PGC 1501050 (catalog mag +17.5) |
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| Annotated CCD Image (50% size, square root scale) 3 x 180s exposure (average combine), 3x3 binning, C Filter 2020-04-19 02:14 UT (#769114-18) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| IC 4481 - 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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| NGC 4448 / H I-91 (Coma Berenices) NGC 4448 (catalog mag +12.4) with adjacent galaxies : PGC 1843133 (catalog mag +16.1), PGC 40900 (catalog mag +16.1), PGC 40901 (catalog mag +16.9), 41014 (catalog mag +17.0), PGC 1843743 (catalog mag +17.0), PGC 1843452 (catalog mag +17.9), PGC 1839783 (catalog mag +19.0) |
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| Annotated CCD Image (50% size, square root scale) 4 x 180s exposure (average combine), 3x3 binning, C Filter 2020-04-19 00:29 UT (#769080-84) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| NGC 4448 / H I-91 - 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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| PGC 40901 (Coma Berenices) PGC 40901 (catalog mag +16.9) |
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| Annotated CCD Image (50% size, square root scale) 4 x 180s exposure (average combine), 3x3 binning, C Filter 2020-04-19 00:29 UT (#769080-84) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| PGC 40901 - Detail |
 CCD Image (125% size, log scale, cropped) Image details as above |
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| Negative CCD Image (125% size, log scale, cropped) Image details as above |
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| UGC 7388 (Canes Venatici) Ring Galaxy, J.Lowrey List Alias: PGC 39783 Note: Single frame due to cloud & guiding issues |
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| CCD Image (100% size, linear scale, cropped) 180s exposure (single frame), 3x3 binning, C Filter 2020-04-19 00:03 UT (#769073) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| UGC 7388 - Earlier Image (2020-04-13) Note: Single frame due to developing cloud. |
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| CCD Image (100% size, linear scale, cropped) 180s exposure (single frame), 3x3 binning, C Filter 2020-04-13 23:24 UT (#767050) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| UGC 8025 / PGC 43863 (Coma Berenices) Flat Galaxy Atlas |
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| Annotated CCD Image (50% size, square root scale) 3 x 180s exposure (average combine), 3x3 binning, C Filter 2020-04-18 23:19 UT (#769041-43) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| UGC 8025 - Detail |
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| CCD Image (100% size, square root scale, cropped) Image details as above |
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| Negative CCD Image (100% size, square root scale, cropped) Image details as above |
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| This Web Page: | CCD Images - Session 769 (2020-04-18) |
| Last Updated : | 2024-05-31 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |
