David's Astronomy Pages
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 Images (S359) |
 Images Sessions |
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 Images (S361) |
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Objects Session Notes
M51 - Spiral Galaxy (Whirlpool Galaxy) Astrometric & Photometric Monitoring - W And (mira variables)}
- attempts at U And, U Gem, Z And (failed dew)
- Late Evening Session (4.5 hrs), - Problems loosing remote connection. Telescope interfering with wireless signal in certain orientations ? - Ambient Temperature initially 7 deg C, gradually falling to 4 deg C
Problems with Dew. Hair Dryer had to be used twice.- CCD operation -25 degC (at 73% average cooling). - main objective of the session was to perform further fine tuning of the telescope system. In the event this comprised star drift testing and recollimination with the PEMPro 2.6 - seconary objective of the session was to acquire images of key selected stars for ongoing photometric and astrometric analysis. In thee event this was hampered by dew conditons - opportunity taken to acquire some images of M51 - - Notes from 2009-04-01
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M51 (Canes Venatici) |
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CCD Image (cropped to central area) 5 x 120s (average combone), 3x3 binning, C Filter 2009-04-01 22:38 h UT (#360179-83) 12" LX200R (at f/5.7) + ST-10XME |
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Previous image of M51 - 2008-02-27 |
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CCD Image (Linear Scale)
5 x 180s exposure (av. combine), 2x2 binning, C Filter 2008-02-27 23:59 UT (#270263-69) 8" LX200 Classic + ST-7E |
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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 360 (2009-04-01) |
| Last Updated : | 2015-05-16 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |
