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Objects Session Notes
RX And - Z Camelopardalis-type dwarf nova 17P/Holmes - Comet Astrometric & Photometric Monitoring
- SS Cyg, U Gem (dwarf nova)
- S Cyg, U And, W And (mira variables)
- BL Lac (Blazar)
- TT Ari, RX And, Z And, U Mon, DY Per, RR Tau (variables)
- HH And, 61 Cyg (Nearby stars)
- Evening session (4.0hr), generally poor transparency with conditions deteriorating and cloud developing towards end. Relatively mild, 10 degC warmer than session 256. - CCD operation of -20 degC (at 80% average cooling). - main objective was to acquire images of certain selected stars for ongoing photometric and astrometric analysis, in particular SS Cyg and RX And.
RX And (Andromeda) Distinct fading of RX And noted in photometric measurements on 2008-01-20 to 2008-01-25 |
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Comet 17P/Holmes - passing
through starfield in Perseus |
CCD Image
3 x 120s exposure (av. combine), 2x2 binning, C Filter 2008-01-25 18:55h UT (#258042-44) |
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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 258 (2008-01-25) |
Last Updated : | 2015-05-16 |
Site Owner : | David Richards |
Home Page : | David's Astronomy Web Site |