David's Astronomy Pages
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 Images (S311) |
 Images Sessions |
Home Page |
 Images (S313) |
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Objects Session Notes
UGC 2427 - Galaxy with SN 2008gb BL Lac - Active Extragalactic Object (Blazer) RX And - variable star (UGZ) Astrometric & Photometric Monitoring - SS Cyg (dwarf nova)
- BL Lac (blazar)
- GP And, RX And, EV Lac, RU Peg, GK Per (variables)
- Barnards Star, 61 Cyg Ross 248 (HH And), Groombridge 34Time Series
- EV Lac attempt (failed to find/follow guide star)KR Aur, U Gem, FU Ori attempts failed (cloud)
Lalande 21185, Gliese 412 attempts failed (cloud)
- All night session (8.9 hrs), operated under automated control. - Ambient Temperature 2.0 degC (minimum) just before dawn, temperature progressively falling through the night.
(7 deg C --> 2 deg C)- CCD operation of -20 degC
(at 64% average cooling).- main objective of the session was to acquire images of key selected stars for ongoing photometric and astrometric analysis. - a secondary objective was to take a time series of EV Lac, but failed due to a problem locating a guide star.
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UGC 2427 & SN 2008gb (Perseus) Image below
(2008-10-08.87) was taken 4.47 days after discovery. |
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| Annotated CCD Image (250%
size,cropped) 5 x 120s exposure (average combine), 2x2 binning, C Filter 2008-10-08 20:52 hUT (#312127-31) |
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SN 2008gb - detail |
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| Negative CCD Image (250% size,
cropped) Image details as above |
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UGC 2427 (Perseus) |
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| CCD Image (Normal Size) Image details as above |
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BL Lac - Photometric data since Jan 2008 |
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| Each point is photometric average of
3 frames (each 120s exposure, R Filter) |
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BL Lac - earlier graph showing detail of late Feb 2008 peak |
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| Each point is photometric average of
3 frames (each 120s exposure, R Filter) |
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BL Lac - earlier image (2006-12-02) |
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CCD Image 120 sec exposure, 2x2 binning, R Filter 2006-12-02 18:06h UT (#157058) |
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RX And (Andromeda) |
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| Each point is photometric average of 3 frames 90s exposure - V Filter, 90s exposure - R Filter |
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RX And - Reference Stars |
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| Annotated CCD Image 45 sec exposure, 2x2 binning, V Filter 2007-10-22 23:59hUT (#224289) |
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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 312 (2008-10-08) |
| Last Updated : | 2015-05-16 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |
