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Images - Session 644 (2018-12-24)
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37P/Forbes - Comet (attempt) 38P/Stephan-Oterma - Comet 46P/Wirtanen - Comet M77 - Spiral Galaxy with SN 2018ivc NGC 2681 - Spiral Galaxy NGC 6946 - Spiral Galaxy (Caldwell 12 / Herschel IV-76) Photometric Monitoring - Variables - RX And, Z And, S, Cyg, SS Cyg, RZ LMi, BL Lac,
FO Ori, NV Ori, GK Per, RR Tau, SU Tau, ER UMa
- AM Her, FU Ori attempts (failed due to cloud)
Astrometric Monitoring - Nearby Stars - HH And, 61 Cyg, Groombridge 34, Teegardens Star
- Schloz's Star attempt failed (due to incorrect location)
- Evening Session (7.8 hours duration) .
Poor-Moderate sky transparency
- Main aim of the session was acquire images of a selection of nearby stars, variable stars and deep sky objects , and perform software testing.' - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: -3°C (minimum) - CCD Temperature: -25°C (77% av. power) - Notes from 2018-12-24 >>
| 37P/Forbes (passing through star-field in Pisces) Sun Distance 2.63 AU Predicted position is marked by white cross-hairs Comet is not visible. This is due to the dimming of comet as it moves further away from the sun (catalogue mag +17.5) |
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| Annotated CCD Image (50% size) 5 x 60 sec exposure (average combine), 3x3 binning, C Filter 2018-12-26 19:13 UT (#644089-93) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| 37P/Forbes - Earlier Image (2018-09-08)
(passing through star-field in Pisces) Sun Distance 2.25 AU Predicted position is marked by white circle Comet is not visible. This may be partly due to a) thin cloud and b) dimming of comet as it moves further away from the sun |
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| Annotated CCD Image (50% size) 3 x 60 sec exposure (average combine), 3x3 binning, C Filter 2018-10-20 19:21 UT (#632017-19) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| 37P/Forbes - Earlier Image (2018-09-08)
(passing through star-field in Pisces) Sun Distance 2.02 AU Comet is marked by white cross hairs Bright star is SAO 128092 (magnitude +9.5) |
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| Annotated CCD Image (50% size) 5 x 60 sec exposure (average combine), 3x3 binning, C Filter 2018-09-08 22:33 UT (#627002-06) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| 37P/Forbes - Earlier Image (2018-08-31) Sun Distance 1.98 AU |
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| Annotated CCD Image (100% size, cropped) 5 x 60 sec exposure (average combine), 3x3 binning, C Filter 2018-08-31 23:09 UT (#623111-15) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| 38P/Stephan-Oterma (passing through Cancer) Sun distance 1.68 AU. |
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| Annotated CCD Image (50% size) 5 x 30s exposure ( average combine), 3x3 binning, C Filter 2018-12-24 23:23 UT (#644292-97) 12" LX200R (at f/10.4) + ST-10XME (Autoguided on a guide star using TS 80mm APO + ZWO ASI178MC) |
| 38P/Stephan-Oterma - Earlier Image (2018-12-04) (passing through Cancer) Sun distance 1.62 AU. |
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| Annotated CCD Image (50% size) 5 x 30s exposure ( average combine), 3x3 binning, C Filter 2018-12-04 00:30 UT (#639041-47) 12" LX200R (at f/10.4) + ST-10XME (Autoguided on a guide star using TS 80mm APO + ZWO ASI178MC) |
| 38P/Stephan-Oterma - Earlier Image (2018-11-08) (passing through Gemini) Sun distance 1.59 AU. |
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| CCD Image (50% size) 26 x 30s exposure ( aligned on comet, average combine), 3x3 binning, C Filter 2018-11-08 03:32 UT (#636029-59) 12" LX200R (at f/10.4) + ST-10XME (Autoguided on a guide star using TS 80mm APO + ZWO ASI178MC) |
| 38P/Stephan-Oterma - Earlier Image (2018-10-21) (passing through Gemini) Sun distance 1.61 AU. |
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| CCD Image (50% size) 7 x 30s exposure (average combine), 3x3 binning, C Filter 2018-10-21 20:03 UT (#633206-12) 12" LX200R (at f/10.4) + ST-10XME (Autoguided using TS 80mm APO + ZWO ASI178MC) |
| 38P/Stephan-Oterma - Earlier detail (2018-10-21) |
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| Annotated CCD Image (100% size, Cropped) Image details as above |
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| 46P/Wirtanen (passing through Auriga) Sun Distance 1.07 AU Earth Distance 0.09 AU (13.8 million km) |
46P/Wirtanen - Detail | |
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| CCD Image (50% size, linear scale) 15s exposure (single frame), 3x3 binning, C Filter 2018-12-24 18:33 UT (#644036) 12" LX200R (at f/10.4) + ST-10XME |
CCD Image (70% size, log scale) 31 x 15s exposure (average combine), 3x3 binning, C Filter 2018-12-24 18:33 to 18:47 UT (#644036-7) 12" LX200R (at f/10.4) + ST-10XME (Autoguided on comet using TS 80mm APO + ZWO ASI178MC) |
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False Color CCD Image (50% size, logscale) Inverse Spectrum Image details as above |
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| More Images of 46P/Wirtanen | ||
| 46P/Wirtanen - Earlier Image (2018-12-16) (passing through Taurus) Near to point of closest distance from earth Sun Distance 1.06 AU Earth Distance 0.08 AU (11.6 million km) |
46P/Wirtanen - Earlier Detail (2018-12-16) | |
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| CCD Image (50% size, linear scale) 15s exposure (single frame), 3x3 binning, C Filter 2018-12-16 21:03 UT (#641184) 12" LX200R (at f/10.4) + ST-10XME |
CCD Image (50% size, log scale) 31 x 15s exposure (average combine), 3x3 binning, C Filter 2018-12-16 21:03 to 21:16 UT (#641184-222) 12" LX200R (at f/10.4) + ST-10XME (Autoguided on comet using TS 80mm APO + ZWO ASI178MC & PHD2) |
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| False Color CCD Image (50% size, logscale) Inverse Spectrum Image details as above |
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| M77 with SN 2018ivc (Perseus) SN 2018ivc discovered 2018/11/24.074 by DLT40 ( (Rochester Supernova site | K. Itagaki image ) |
| M77 with SN 2018ivc - 2018-12-24 (T+30.7d) Image below (2018-12-24.791) taken 30.7 days after discovery of SN 2018ivc No positive indication of supernova (image either has nsufficient resolution to resolve SN 208ivc or the supernova has faded too far to be seen |
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| Annotated CCD Image (100% size, cropped, logscale) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2018-12-24 18:59 UT (#644080-84) 12" LX200R (at f/10.4) + ST-10XME |
| M77 w/ SN 2018ivc - Earlier Image,
2018-12-04 (T+10.8d) Image below (2018-12-04.842) was taken 10.8 days after discovery of SN 2018ivc SN is just visible in image below (shown by white cross-hairs) |
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| Annotated CCD Image (100% size, cropped, logscale) 180s exposure (single frame), 3x3 binning, C Filter 2018-12-04 20:12 UT ( 640059) 12" LX200R (at f/10.4) + ST-10XME |
| Images of SN 2018ivc (M77) on Supernovae 2018 Page >> |
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| NGC 2681 (Perseus) Galaxy with possible supernova AT2018irv near core (not resolveable in image) AT2018irv discovered discovered 2018/11/09.514 by by Zwicky Transient Facility (ZTF) (Rochester Supernova site | K. Itagaki image ) SN show in image below by white cross-hairs Type II Supernova |
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| Annotated CCD Image (100% size, cropped, logscale) 5 x 120s exposure (average combine), 3x3 binning, C Filter 2018-12-24 18:59 UT (#644248-52) 12" LX200R (at f/10.4) + ST-10XME |
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| NGC 6946 / Caldwell 12 / Herschel IV-76 (Cepheus) taken with Ha filter |
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| CCD Image (75% size, cropped) 8 x 180s exposure (average combine), 3x3 binning, Ha Filter 2018-12-24 17:29h UT (#644013-20) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| NGC 6946 - Earlier Image taken in 2010 taken with C Filter |
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| CCD Image (80% size, cropped) 8 x 90s (average combine), 3x3 binning, C Filter 2010-02-20 19:44h UT (#414129-36) 12" LX200R (at f/9.7) + ST-10XME |
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| This Web Page: | Images - Session 644 (2018-12-24) |
| Last Updated : | 2024-06-13 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |
