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Objects Session Notes
IC 2973 - Spiral Galaxy & Supernovae 2011ao Variable Stars Photometric Monitoring - Variables - Z And, SY Cnc, R CrB, AM CVn, RS CVn, CI Cyg, S Cyg, SS Cyg, AM Her, SS Her, U Her, BL Lac, RZ LMi, SZ Lyn, CY Lyr, GK Per, ER UMa, SU UMa Astrometric Monitoring - Nearby Stars - DX Cnc, 61 Cyg, Gliese 412, Groombridge 1830, Lalande 21185
- Post midnight session (2.7 hrs), (2011-03-19) - Session operated under semi-automated control, with remote monitoring from indoors computer. - Ambient Temperature: recording failed after 50 mins when connectivity with Optec TCF-S Focuser was lost. Temperature at this points had fallen to -0.5 deg C. - CCD operation -30 degC (at 66% average cooling). - main objectives of the session was to acquire images of selected project stars for ongoing photometric analysis.
IC 2973 with SN 2011ao (Ursa Major) Image below
(2011-03-19.06) was taken 20.2 days after discovery. |
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Annotated CCD Image (cropped) 5 x 90s exposure (average combine), 3x3 binning, C Filter 2011-03-19 01:27 hUT (#463088-92) 12" LX200R (at f/9.7) + ST-10XME |
Earlier Image of IC 2973 with SN 2011ao
- 2011-03-07 |
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Annotated CCD Image (cropped) 3 x 90s exposure (average combine), 3x3 binning, C Filter 2011-03-07 21:31 hUT (#461185-87) 12" LX200R (at f/9.7) + ST-10XME |
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This Web Page: | CCD Images - Session 463 (2011-03-18) |
Last Updated : | 2015-05-16 |
Site Owner : | David Richards |
Home Page : | David's Astronomy Web Site |