David's Astronomy - Images 2007-12-02 (S00238) (original) (raw)
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UGC 12846 - Spiral Galaxy with Supernova 2007od |
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[17P/Holmes - Comet](#Comet%5F 17P%5FHolmes) |
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NGC 7635 - "Bubble Nebula" |
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Sharpless 2-155 - Emission Nebula, "Cave Nebula" |
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Dwarf Planet, 1 Ceres |
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M46 - Open Cluster |
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M47 - Open Cluster |
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NGC 2438 - Planetary Nebula |
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Astrometric & Photometric Monitoring - SS Cyg (dwarf nova) - BL Lac (Blazar) - S Cyg (mira variable) - Z And, TT Ari (variables) |
| - | Evening session (4.6hr), operated under automated control for majority of session. |
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| CCD operation of -25 degC (at 74% average cooling). | |
| - | main objective of the session was to acquire an image mosaic of comet 17P/Holmes (now grown to larger than the apparent diameter of the moon) |
| -secondary objectives were to acquire images of certain selected stars of ongoing photometric and astrometric analysis | |
| -opportunity was also taken to acquire gallery images of Caldwell 51 (IC 1613), and certain other comets and deep sky objects. |