David's Astronomy Pages
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 Images (S226) |
 Images Sessions |
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 Images (S228) |
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Objects Session Notes
Comet 17P/Holmes (2007-10-30 update) Comet 17P/Holmes (2007-10-25) Astrometric & Photometric Monitoring
- SS Cyg (Dwarf Nova)
- BL Lac (Blazar)
- RX And, CY Lyr, TZ Lyra (variables)
- U And (Mira Variable)
- (unsuccessful attempts at TT Ari due to cloud)
- 2 hr session, full moon, cloud developing towards end of session, very windy (dew shield not used). CCD operation of -20 degC (at 85% average cooling). - main objective of the session was to acquire an images of newly brightened comet 17P/Holmes
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Comet 17P/Holmes - explosive eruption |
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| Animated CCD Images 5 x 10s exposure (average combine), 2x2 binning, C Filter, Log Scale Frame 1 : 2007-10-25 20:45h UT (#227055-59) Frame 2 : 2007-10-29 04:43h UT (#228038-42) Frame 3 : 2007-10-30 04:47h UT (#229035-39) [More pictures from 17P/Holmes from 2007-10-30] |
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Comet 17P/Holmes |
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| CCD Image Mosaic (3 x 4), 60% size 30s exposure, 2x2 binning, C Filter, Linear Scale 2007-10-25 21:06h UT (#227091-102) [ Full Size ] |
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Comet 17P/Holmes |
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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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| Annotated CCD Image 5s, 2x2 Binning, C Filter, Log Scale 2007-10-25 20:38h UT (#227015) |
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| Annotated CCD Image 60s, 2x2 Binning, C Filter, Linear Scale 2007-10-25 20:58h UT (#227088) |
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| Approximate Colour CCD Image Red: 15s (R), Green: 15s (V), Blue: 30s (B), 2x2 Binning 2007-10-25 20:50h UT (#227070-72) |
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Comet 17P/Holmes - Fine detail Processing |
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| Original CCD Image 5s, 2x2 Binning, C Filter, Linear Scale 2007-10-25 20:38h UT (#227015) |
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| Processed CCD Image Rotational Gradient Processing, 20 deg (Image details as above) [Full Size] |
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| Processed CCD Image Rotational Gradient Processing, 20 deg, Blurred (Image details as above) |
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Comet 17P/Holmes - enlarged |
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| False Colour CCD Image (250% size) (Image details as above) |
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| CCD Image (250% size) 5s, 2x2 Binning, C Filter, Linear Scale 2007-10-25 20:38h UT (#227015) |
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| False Colour CCD Image (250% size) 5s, 2x2 Binning, C Filter, Square Root Scale False Colour (Inverse Spectrum) 2007-10-25 20:38h UT (#227015) |
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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 227 (2007-10-25) |
| Last Updated : | 2015-05-16 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |
