David's Astronomy Pages CCD Images - Session 463 (2011-03-18)

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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 - Spiral Galaxy with Supernovae 2011ao

IC 2973 with SN 2011ao (Ursa Major) SN 2011ao (Type Ia) was discovered discovered 2011/03/03.434 by A. Kroes, Jack Newton, and Tim Puckett Magnitude at discovery ? +15.3 (Rochester Supernova site | Discovery Image ) Image below (2011-03-19.06) was taken 20.2 days after discovery. SN 2011ao is marked by white cross hair Estimated magnitude +13.8

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 9 days after discovery

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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