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2012-08-03 Impact of having an up-to-date flat field on final image (M101) Images from 2012-08-03 >>
Annotated CCD Image of M101 with with supernova 2011fe (Ursa Major) (58% size, cropped) 5 x 60 sec exposure (average combine), 3x3 binning, C Filter 2012-08-03 22:26 h UT (#512215-19) 12" LX200R (at f/9.7) + ST-10XME |
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Left hand image with out of date flat
field (two particular artifact are noticeable due to altered or invalid dust motes ) |
Right hand image with updated flat field (improvement in image is noticeable) |
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Old Master Flat (50% size) 3x3 binning, C Filter, 17 x 1.5s (Av. Median) , S491 |
New Master Flat (50% size) 3x3 binning, C Filter, 21 x 1.5s (Av. Median), S515 |
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This Web Page: | Notes - Session 512 (2012-08-03) |
Last Updated : | 2015-05-15 |
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