David's Astronomy Pages
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 Images (S373) |
 Images Sessions |
Home Page |
 Images (S375) |
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Objects Session Notes
NGC 6440 - Globular Cluster NGC 6445 - Planetary Nebula M22 - Globular Cluster M25 - Open Cluster M28 - Globular Cluster M75 - Globular Cluster M20 - Nebula (Trifid Nebula) Photometric Monitoring - Variables - RX And, U And, W And, R CrB, CI Cyg, SS Cyg,
- SS Her, U Her, BL Lac, DY Per, FG Sge, U Sge, V SgePhotometric Monitoring - Nearby Stars - Barnard's Star, Groombridge 34, EV Lac, Ross 248 (HH And), 61 Cyg
- Night time session (2.6 hrs).
Clear sky, mist developing at dawn, warm night- Operated under semi-automated control. - Ambient Temperature initially 16 deg C, decreasing to 12 deg C by end of observing session. - CCD operation -20 degC (at 88% average cooling). - main objective of the session was to acquire images of key selected stars for ongoing photometric and astrometric analysis. - opportunity taken to acquire images of a low declination objects in Sagittarus and Ophiuchus -
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NGC 6440 (Sagittarus) |
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CCD Image (66% size reduction, cropped) 5 x 20s sec exposure (average combine), 2x2 binning, C Filter 2009-07-02 23:04 h UT (#374014-18) 12" LX200R (at f/5.7) + ST-10XME |
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NGC 6445 (Sagittarus) |
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CCD Image (35% size reduction) 7 x 20s sec exposure (average combine), 2x2 binning, C Filter 2009-07-02 23:10 h UT (#374023-29) 12" LX200R (at f/5.7) + ST-10XME [ Full Size Image ] |
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NGC 6445 - detail |
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CCD Image (100% size, cropped) Image details as above |
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M22 (Sagittarus) |
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CCD Image (75% size reduction, cropped) 5 x 20s sec exposure (average combine), 3x3 binning, C Filter 2009-07-02 23:16 h UT (#374033-37) 12" LX200R (at f/5.7) + ST-10XME |
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M25 (Sagittarus) |
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CCD Image (50% size reduction) 5 x 10s sec exposure (average combine), 3x3 binning, C Filter 2009-07-02 23:24 h UT (#374044-48) 12" LX200R (at f/5.7) + ST-10XME [Full Size] |
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M28 (Sagittarus) |
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CCD Image (35% size reduction) 5 x 20s sec exposure (average combine), 2x2 binning, C Filter 2009-07-02 23:34 h UT (#374056-60) 12" LX200R (at f/5.7) + ST-10XME |
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M28 - detail |
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CCD Image (100% size, cropped) Image details as above |
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M75 (Sagittarus) |
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CCD Image (66% size reduction, square root scaling,
cropped) 10 x 20s sec exposure (average combine), 2x2 binning, C Filter 2009-07-02 23:39 h UT (#374063-72) 12" LX200R (at f/5.7) + ST-10XME |
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M75 - detail |
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CCD Image (100% size, log scale scaling, cropped) Image details as above |
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M20 (Sagittarus) |
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CCD Image (35% size reduction) 9 x 20s sec exposure (average combine), 2x2 binning, C Filter 2009-07-02 23:47 h UT (#374075-83) 12" LX200R (at f/5.7) + ST-10XME |
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M20 - detail |
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CCD Image (66% size reduction, cropped) Image details as above |
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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 374 (2009-07-02) |
| Last Updated : | 2020-06-09 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |
