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Objects Session Notes
PGC 100170 - Galaxy (Dwingeloo 1) PGC 2666 - Dwarf Spheroidal Galaxy (Andromeda I) - 2.9 mly Variable Stars Photometric Monitoring - Variables - RX And, W And, Z And, CI Cyg, SS Cyg, BL Lac, CY Lyr, RU Peg, DY Per, GK Per, V Sge, RR Tau
U And, FG Sge attempts (failed due to condensation/frost on corrector lens)Astrometric Monitoring - Nearby Stars - Ross 248 (HH And), Groombridge 34,
- Evening session (4.3 hr). Very cold (minimum temperature -3.5 degC)
Autostar II/LX200 performing normally- Session operated under semi-automated control - Ambient Temperature: Falling to -3.5 degC (minimum) - CCD operation -30 degC (at 62% average cooling). - main objectives of the session was to acquire images of key selected stars for ongoing photometric and astrometric analysis, and test new off-chip binning functionality with increased Gain - secondary objective was to acquire images of a few Local Group and other nearby Galaxies. Some results (PGC 143, PGC 14241, PGC 15439, PGC 2544) poor due to Moonlight and condensation/frost on corrector lens. -
PGC 100170 / Dwingeloo
1 (Cassiopeia) |
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CCD Image (35% size, cropped) 5 x 120s exposure, 2x2 binning, I Filter 2009-12-25 20:34h UT (#407330-34) 12" LX200R (at f/5.7) + ST-10XME |
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PGC 100170 - detail Bright
star in bottom left is the double star Struve 321 |
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CCD Image (cropped) Image details as above |
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Comparison of images of PGC 100170, |
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Image through 12" LX200R |
Image from a big telescope
at |
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CCD Image |
Image by S. Hughes & S.
Maddox |
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Earlier Imaging Attempt at PGC 100170 / Dwingeloo 1 (2006) |
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CCD Image 2 x 3 min exposure, 2x2 binning (average combine), I Filter 2006-09-01 22:58 h UT (#136089-91) 8" LX200 Classic + ST-7E |
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PGC 2666 / Andromeda I (Andromeda) |
Annotated CCD Image (cropped) 3 x 120s exposure (average combine), 3x3 binning, I Filter 2009-12-26 21:02h UT (#407346-48) 12" LX200R (at f/5.7) + ST-10XME |
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This Web Page: | CCD Images - Session 407 (2009-12-25) |
Last Updated : | 2019-08-10 |
Site Owner : | David Richards |
Home Page : | David's Astronomy Web Site |