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Objects Session Notes
M3 - Globular Cluster M24 - Open Cluster M17 - Nebula (Swan Nebula) Pluto - Dwarf Planet V2491 Cyg - Nova Photometric Monitoring - Variables - R CrB, AM CVn, CI Cyg, SS Cyg,
- SS Her, U Her, CY Lyr, RZ LMi
- FG Sge, WZ Sge, ER UMaPhotometric Monitoring - Nearby Stars - 61 Cyg, Barnards Star
- Late Evening Session (2.4 hrs), cloud/murky sky developing towards end of session. - Operated under automated control with remote control monitoring - Ambient Temperature initially 10 deg C, decreasing to 8 deg C. - CCD operation -25 degC (at 84% 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 certain gallery objects including 17 and M24 - - [Attempt at session on 2009-05-29, but aborted after x minutes due to xx]
M3 (Canes Venatici) |
CCD Image (50% size reduction, log scaling cropped) 15s sec exposure (single frame), 3x3 binning, C Filter 2009-05-51 00:08 h UT (#371125) 12" LX200R (at f/5.7) + ST-10XME [Larger Image - detail ] |
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M24 (Sagittarus) |
CCD Image (50% size reduction) 5 x 30s sec exposure (average combine), 3x3 binning, C Filter 2009-05-51 00:23 h UT (#371139-43) 12" LX200R (at f/5.7) + ST-10XME [Larger Image 70% size reduction] |
M24 - detail |
CCD Image (cropped to central area) 7 x 10s sec exposure (average combine), 1x1 binning, C Filter 2009-05-51 00:26 h UT (#371144-50) 12" LX200R (at f/5.7) + ST-10XME |
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M17 (Sagittarus) |
CCD Image (70% size
reduction) 10 x 30s sec exposure (average combine), 3x3 binning, C Filter 2009-05-31 00:36 h UT (#371155-64) 12" LX200R (at f/5.7) + ST-10XME [ Full Size ] |
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(134340) Pluto |
CCD Animation Frames : 3 x 20s exposures (aligned, average combine & cropped), 3x3 binning , C Filter 1) 2009-05-27 00:59 h UT (#369205-07) 2) 2009-05-29 00:56 h UT (#370020-22) 3) 2009-05-31 00:18 h UT (#371134-36) 12" LX200R (at f/5.7) + ST-10XME |
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V2491 Cyg (Cygnus) |
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Latest image of
V2491 Cyg compared with early post-discovery image showing that Cyg V2491 has dropped some 8 magnitudes and returned to pre-nova levels |
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415 days (mag < +16 ) |
4.25 days (mag +8.5) |
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3 x 45s exposure (average combine), 3x23 binning, C Filter 2009-05-31 01:02hUT (#371200-02) 12" LX200 R + ST-10XME |
3x20s exposure (average combine), 2x2 binning, C Filter 2008-04-14 23:48hUT (#281164-66) 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 371 (2009-05-30) |
Last Updated : | 2015-05-16 |
Site Owner : | David Richards |
Home Page : | David's Astronomy Web Site |