David's Astronomy Pages
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 Images (S268) |
 Images Sessions |
Home Page |
 Images (S270) |
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Objects Session Notes
U Gem - Dwarf Nova eruption (Feb 2008) BL Lac - Blazar brightening (Feb 2008) Astrometric & Photometric Monitoring
- SS Cyg, U Gem (dwarf nova)
- U And, W And, U Her (mira variables)
- BL Lac (blazar)
- RX And, Z And, KR Aur, AQ CMi, CV CMi, SY Cnc, RZ LMi, U Mon, FU Ori, DY Per, RR Tau, SU Tau, ER UMa (variables)
- Short evening session (0.9hr).
Temperature +6.5 degC- CCD operation of -20 degC
(at 73% average cooling).- main objective was to acquire images of certain selected stars for ongoing photometric, in particular U Gem & RX And.
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U Gem - February 2008 eruption |
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| Each point is photometric average of
3 frames (each 120s exposure, V Filter) |
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BL Lac (Lacerta) |
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| Each point is photometric average of
3 frames (each 120s exposure, R Filter) |
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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 269 (2008-02-26) |
| Last Updated : | 2015-05-16 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |
