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Images - Session 629 (2018-09-14)
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21P/Giacobini-Zinner - Comet 37P/Forbes - Comet Hickson 76 - Galaxy Group (NGC 5944 et al) NGC 5322 - Elliptical Galaxy (Herschel I-256) Photometric Monitoring - Variables - RX And, U And, CI Cyg, U Her, BL Lac, CY Lyr,
DY Per, GK Per, FG Sge, V Sge, RR Tau
Astrometric Monitoring - Nearby Stars - 61 Cyg, Groombridge 34, EV Lac, Teegardens Star SharpCap Files (S629)
- Night Session (6.9 hours duration) .
Clear skies for entire night- Main aim of the session was to take images of Comet 21P Giacobini-Zinner and selection of other targets (variable stars, nearby stars and deep sky objects). Secondary aims were to test a new routine for measuring the Half Flux Diameter (HFD) of a star. - Session was mainly conducted as a fully Automated operation, but dropping to Manual Mode for imaging Comet 21P Giacobini-Zinner (Session was largely monitored remotely from indoors to observe the operations and spot any new or recurrent issues) - - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 4°C (minimum) (9°C sky flats) - CCD Temperature: -20°C (76% av. power) Images
CCD Temperature: -15°C (59% av. power) Sky Flats- Notes from 2018-09-14 >>
| 21P/Giacobini-Zinner
(passing through Gemini) Sun Distance 1.02 AU Earth Distance 0.40 AU (59.1 million km) |
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| CCD Image (50% size, linear scale) 30 sec exposure (single frame), 3x3 binning, C Filter 2018-09-15 01:18 UT (#629521) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 [ Full Size Image ] |
| 21P/Giacobini-Zinner - Detail |
|
| CCD Image (50% size, log
scale) Image details as above [ Full Size Image ] |
|
| False Colour CCD Image (50% size,
log scale) Inverse Spectrum Image details as above |
| 21P/Giacobini-Zinner - Animated Image showing 3.28 arc min movement of comet over a 41 minute interval (i.e. movement of 4.8 arc min/hour or 1.92 arc deg/day) |
 |
| Animated CCD Image (100% size,
linear scale, cropped) 40 x 30 sec frames, 3x3 binning, C Filter 2018-09-15 01:18 to 02:00 UT (#629521-80) 12" LX200R (at f/10.4) + ST-10XME Auto-guided on star using TS 80mm APO, ZWO ASI178MC & PHD2 |
| 21P/Giacobini-Zinner - Other Images |
 |
| Composite CCD Image (50% size,
logscale) 14 x 15 sec exposure (aligned on comet, average combine) 3x3 binning, C Filter 2018-09-15 02:35 to 02:42 UT (#629621-35) 12" LX200R (at f/10.4) + ST-10XME Auto-guided on star using TS 80mm APO, ZWO ASI178MC & PHD2 [ Full Size Image ] |
|
| False Colour CCD Image (50% size,
log scale) Inverse Spectrum Image details as above |
 |
| Composite CCD Image (72% size,
log scale) 40 x 30 sec exposure (aligned on comet, average combine) 3x3 binning, C Filter 2018-09-15 01:18 to 02:00 UT (#629521-80) 12" LX200R (at f/10.4) + ST-10XME Auto-guided on star using TS 80mm APO, ZWO ASI178MC & PHD2 [ Full Size Image ] |
| 21P/Giacobini-Zinner - Rotational
Gradient Processing 15 deg rotational shift (Processing performed in IRIS 5.59) |
 |
| Processed CCD Image (50% size,
rotational gradient) 5 x 30 sec exposure (aligned on comet, average combine) 3x3 binning, C Filter 2018-09-15 01:20 UT (#629621-25) 12" LX200R (at f/10.4) + ST-10XME Auto-guided on star using TS 80mm APO, ZWO ASI178MC & PHD2 |
 |
| Processed CCD Image (100% size,
rotational gradient, cropped) Image details as above |
|
|
| Approximate Colour CCD Image (50% size,
linear scale) Luminance : 8 x 15s sec exposure (av. combine), 3x3 binning, C Filter Red : 8 x 20s sec exposure (av. combine), 3x3 binning, R Filter Green : 9 x 20s sec exposure (av. combine), 3x3 binning, V Filter Blue : 8 x 30s sec exposure (av. combine), 3x3 binning, B Filter 2018-09-15 02:05 to 02:30 UT (#629581-613) 12" LX200R (at f/10.4) + ST-10XME Auto-guided on comet using TS 80mm APO, ZWO ASI178MC & PHD2 |
| 21P/Giacobini-Zinner - Wider View through TS 80mm APO scope |
 |
| Colour CMOS Image (16% size) 12 x 10s (Live Stack Combine) 1x1 binning, Gain 400 Total Exposure 120s 2018-09-15 02:58 UT (#02_58_53Z) TS 80mm f/6 APO + ASI178MC (OSC) Mounted on 12" LX200R [ Larger Image , 29% size ] |
 |
| Colour CMOS Image (100% size,
cropped) Image details as above |
| 21P/Giacobini-Zinner - Wider View 21P/Giacobini-Zinner at top of image, M35 Open Cluster at bottom of image (Picture is from just a single frame and quite faint) |
 |
| Colour CMOS Image (16% size) 10s (Single Frame) 1x1 binning, Gain 400 2018-09-15 03:09 UT (#03_09_48Z) TS 80mm f/6 APO + ASI178MC (OSC) Mounted on 12" LX200R |
|
21P/Giacobini-Zinner - Earlier Image (May 2018) |
|
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| CCD Image (50% size) 4 x 30s sec exposure (average combine), 3x3 binning, C Filter 2018-05-18 01:45 h UT (#611179-83) 12" LX200R (at f/5.7) + ST-10XME |
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| 37P/Forbes (passing through star-field in Pisces) Sun Distance 2.05 AU Comet is marked by white cross hairs. Two faint galaxies in the image are PGC 85401 (catalog mag +16.8) & PGC 70646 (catalog mag +16.7) |
 |
| Annotated CCD Image (50% size) 3 x 60 sec exposure (average combine), 3x3 binning, C Filter 2018-09-15 00:12 UT (#629498-500) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 [ Full Size Image ] |
| 37P/Forbes - Detail |
|
| Annotated CCD Image (100% size, cropped) Image details as above |
| 37P/Forbes - Earlier Image (2018-09-08) Sun Distance 2.02 AU |
|
| Annotated CCD Image (100% size, cropped) 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 |
|
| 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 |
|
| Negative CCD Image (100% size, cropped) Image details as above (2018-08-31) |
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| Hickson 76 (Serpens) |
 |
| CCD Image (50% size) 4 x 180 sec exposure (average combine), 3x3 binning, C Filter 2018-09-14 20:07 UT (#629323-26) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Hickson 76 - detail a) NGC 5944 (catalog mag +15.9), b) NGC 5941 (catalog mag +13.9) c) NGC 5942 (catalog mag +14.3), d) PGC 55316 (catalog mag +--) e) PGC 55325 (catalog mag +17.2), f) 76F (catalog mag +--) G) PGC 55307 (catalog mag +17.5) |
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| Annotated CCD Image (100% size, cropped) Image details as above |
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| Negative CCD Image (100% size, cropped) Image details as above |
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| NGC 5322 / Herschel I-256 (Ursa Major) |
 |
| CCD Image (50% size, linear scale) 3 x 180 sec exposure (average combine), 3x3 binning, C Filter 2018-09-14 23:56 UT (#629456-58) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| CCD Image (70% size, log scale) Image details as above |
| NGC 5322 / Herschel I-256 - Earlier Image |
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| CCD Image (100% size, log scale, cropped) 2 x 180 sec exposure (average combine), 3x3 binning, C Filter 2018-09-02 01:56 UT (#624093-94) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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SharpCap Session - 2018-09-14 S00629
| Object | Folder | Capture Area | Colour Space | Bin | Exp | Gain | Gamma | Temp. (C) | Subtract Dark | Output Format | Num Frames | Stacked Frames | Total Exp | Num .fits | Raw .fits | Num .png | Proc .png | Num .ser |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Comet 21P Giacobini-Zinner | 02_53_09Z | 3096x2080 | RAW8 | 1 | 50ms | 255 | 50 | 12.7 | SER | 1 | 1 | 0 | 0 | 0 | 0 | |||
| " | 02_55_28Z | 3096x2080 | RGB24 | 2 | 15.8s | 400 | 50 | 13.5 | FITS | 8+ | 8 | 2.1m | 2 | 0 | 0 | 1 | 0 | |
| " | 02_58_53Z | 3096x2080 | RGB24 | 2 | 10s | 400 | 50 | 13.2 | FITS | 12+ | 12 | 2m | 2 | 0 | 0 | 1 | 0 | |
| " | 03_01_05Z | 2 | 0 | 0 | 0 | 0 | 0 | |||||||||||
| " | 03_02_35Z | 2 | 0 | 0 | 0 | 0 | 0 | |||||||||||
| " | 03_03_15Z | 2 | 0 | 0 | 0 | 0 | 0 | |||||||||||
| " | 03_03_48Z | 2 | 0 | 0 | 0 | 0 | 0 | |||||||||||
| " | 03_05_19Z | 2 | 0 | 0 | 0 | 0 | 0 | |||||||||||
| " | 03_05_57Z | 2 | 0 | 0 | 0 | 0 | 0 | |||||||||||
| " | 03_06_38Z | 2 | 0 | 0 | 0 | 0 | 0 | |||||||||||
| " | 03_06_58Z | 800x600 | RGB24 | 2 | 10s | 400 | 50 | 12.8 | FITS | 12+ | 12 | 2m | 2 | 0 | 0 | 1 | 0 | |
| " | 03_09_48Z | 2 | 0 | 0 | 0 | 0 | 0 | |||||||||||
| M31 | 03_12_40Z | 3096x2080 | RGB24 | 2 | 10s | 400 | 50 | 12.7 | FITS | 30+ | 30 | 5m | 2 | 0 | 0 | 1 | 0 | |
| " | 03_20_47Z | 3096x2080 | RGB24 | 2 | 10s | 400 | 50 | 12.7 | FITS | 36+ | 36 | 6m | 2 | 0 | 0 | 1 | 0 |
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| This Web Page: | Images - Session 629 (2018-09-14) |
| Last Updated : | 2024-06-13 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |
