David's Astronomy Pages
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 Images (S477) |
 Images Sessions |
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 Images (S479) |
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Objects Session Notes
M101 - spiral galaxy with supernova 2011fe C/2009 P1 (Garradd) - Comet Variable Stars Photometric Monitoring - Variables - R CrB attempt (failed due to cloud) Astrometric Monitoring - Nearby Stars - Barnards Star attempt (failed due to wind)
- Short evening session (0.6 hrs), cut short due to cloud & wind - Session operated under semi-automated control, with remote monitoring from indoors computer. - Ambient Temperature: 13.5 deg C (minimum) - CCD operation -20 degC (at 86% average cooling). - main objective of the session to obtain follow-up images of bright supernovae in nearby galaxy M101 secondary objective was to image project stars for ongoing photometric analysis
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M101 with supernova 2011fe (Ursa
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SN 2011fe is reported as being the nearest Type 1a supernova seen in decades |
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| M101 with supernova 2011fe (Ursa Major) | ||
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New Image (+37d) 2011-09-29.88 37 days after SN discovery SN Est. Mag +11.1 Annotated CCD Image (58% size, cropped) 4 x 60 sec exposure (average combine), 3x3 binning, C Filter 2011-09-29 21:04 h UT (#478008-11) 12" LX200R (at f/9.7) + ST-10XME Note : Poor sky transparency + frost on edges of CCD |
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Earlier Image (+1.9d) 2011-08-25.91 ~ 1.9 days after SN discovery SN Est. Mag +13.4 Annotated CCD Image (58% size, cropped) 9 x 60 sec exposure (average combine), 3x3 binning, C Filter 2011-08-25 21:41 h UT (#477019-28) 12" LX200R (at f/9.7) + ST-10XME |
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Earlier Image (pre-discovery) 2009 CCD Image (cropped) 9 x 60 sec (average combine), 3x3 binning, C Filter 2009-08-24 22:00 h UT (#386001-10) 12" LX200R (at f/5.7) + ST-10XME |
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C/2009 P1 (Garradd) |
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| CCD Image (50% size) 2 x 30 sec exposure (average combine), 3x3 binning, C Filter 2011-09-29 21:23 h UT (#478030-35) 12" LX200R (at f/9.7) + ST-10XME |
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C/2009 P1 (Garradd) - detail |
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| False Colour CCD Image (50% size) Square root scaling, Inverse Spectrum colour bar Image details as above |
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| This Web Page: | CCD Images - Session 478 (2011-09-29) |
| Last Updated : | 2015-05-16 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |
