David's Astronomy Pages
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 Images (S306) |
 Images Sessions |
Home Page |
 Images (S308) |
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Objects Session Notes
GK Per - Variable Star, Nova (1901) Astrometric & Photometric Monitoring - SS Cyg (dwarf nova)
- BL Lac (blazar)
- RX And, R CrB, CY Lyr, DY Per, GK Per (variables)
- 61 Cyg (nearby star)- RU Peg attempt failed (due to cloud)
- Short evening session (2.1 hrs), cut short by developing cloud. - Ambient Temperature 6.5 degC . - CCD operation of -20 degC
(at 72% average cooling).- main objective of the session was to acquire images of key selected stars for ongoing photometric and astrometric analysis. - a secondary objective, to test revised routine for automated guiding between frames, was not possible due to early termination of the session.
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GK Per (Perseus) |
| GK Per - reference stars |
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Annotated CCD Image |
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| GK Per - earlier image (2008-09-27) |
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Annotated CCD Image 3 x 30s exposure (average combine), 2x2 binning, C filter, 2008-09-27 21:41h UT (#306152-58) |
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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 307 (2008-09-28) |
| Last Updated : | 2018-07-31 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |
