David's Astronomy Pages
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 Images (S339) |
 Images Sessions |
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 Images (S341) |
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Objects Session Notes
M61 - Spiral Galaxy Astrometric & Photometric Monitoring - SS Cyg, U Gem (dwarf nova)
- U And, W And (mira)
- BL Lac (blazar)
- FO And, Z And, TT Ari, KR Aur, SY Cnc, AM CVn, RZ LMi, U Mon, CN Ori, CZ Ori, FO Ori, FU Ori, NV Ori, DY Per, GK Per, RR Tau, ER UMa (variables)
- Late Evening session (4.9 hrs), operated under automated control - Ambient Temperature 0 deg C, - CCD operation -30 degC (at 82% average cooling). - main objective of the session was to acquire images of key selected stars for ongoing photometric and astrometric analysis. - attempt made to image M61, but spoilt by poor sky transparency
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M61 (Virgo) |
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CCD Image - Linear scaling 4 x 120s sec exposure (average combine), 2x2 binning, C Filter 2009-01-08 01:49 h UT (#340197-200) |
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M61 - previous image (2008-11-30) |
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CCD Image - Linear scaling 5 x 120s sec exposure (average combine), 2x2 binning, C Filter 2008-11-30 05:30 h UT (#328664-68) |
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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 340 (2009-01-07) |
| Last Updated : | 2015-05-16 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |
