David's Astronomy Pages
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 Images (S229) |
 Images Sessions |
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 Images (S231) |
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Objects Session Notes
Comet 17P/Holmes Astrometric & Photometric Monitoring
- SS Cyg (dwarf nova)
- (unsuccessful attempts at BL Lac, Lyr TZ, due to cloud)
- Evening session (1.7hr), mild, patchy cloud, full cloud cover developing towards end of session CCD operation of -15 degC (at 69% average cooling). Ambient temperatures 10 deg warmer than previous session on Oct 30th - main objective of the session was to acquire an follow up images of recently erupted comet 17P/Holmes and acquire images for photometric analysis of SS Cyg - secondary objective was to acquire images of selected stars for ongoing astrometric and photometric analysis
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Comet 17P/Holmes (passing through starfield in Perseus) |
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| CCD Image Mosaic (3 x 3) Linear Scale, 50% size 20s exposure, 2x2 binning, C Filter, 2007-11-02 22:57h UT (#230054-62) [100% Size] |
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| CCD Image Mosaic (3 x 3) Log Scale, 50% size Image details as above [100% Size] |
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| CCD Image Mosaic (3 x 3) Log Scale, False Colour, 50% size Image details as above [100% Size] |
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Comet 17P/Holmes - Expanding
Coma |
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| Annotated CCD Image Mosaic (3 x 3) Log Scale, Cropped 20s exposure, 2x2 binning, C Filter, 2007-11-02 22:57h UT (#230054-62) [Full Size] |
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Earlier Image of Comet 17P/Holmes from
2007-10-25 |
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| Annotated CCD Image Log Scale 5 x 10s exposure (average combine), 2x2 binning, C Filter, 2007-10-25 20:45h UT (#227055-59) |
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Comet 17P/Holmes - Detail |
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| CCD Image (50% size) Linear Scale 7 x 60s exposure (average combine), 1x1 binning, C Filter, 2007-11-02 22:44h UT (#230038-44) [ Full Size, 100%] |
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| False Colour CCD Image Square Root brightness scaling, Isophot Contoured, False Colour (Inverse Spectrum) (Image details as above) |
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Comet 17P/Holmes - Rotational Gradient Processing |
| Processed CCD Image Rotational Gradient Processing, 20 deg Cropped (Image details as above) |
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Images collected for Astrometric Monitoring
of Nearby Stars Project
Images collected for Photometric Monitoring
of Variable Stars
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| This Web Page: | CCD Images - Session 230 (2007-11-02) |
| Last Updated : | 2015-05-16 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |
