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M31, M32, M110 (#2) | by s58y
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M31, M32, M110 (#2)

Subject: M31, M32, and M110 -- Andromeda Galaxy


Image FOV = 3 degrees (180 min) by 2 degrees (120 min)


Image Scale = 7.5 arc-second/pixel


Date: 2006/11/21 and 2006/11/24


Exposure: 86 x 4minutes = 5h44m total exposure, ISO800, f/4.8


Filter: IDAS LP filter


Camera: Hutech-modified Canon 30D


Telescope: SV80S 80mm f/6 + TV TRF-2008 0.8X reducer/flattener = 384mm FL, f/4.8


Mount: Losmandy G-11


Guiding: ST-402 autoguider and SV66 guidescope. MaximDL autoguiding software using 1-second guide exposures


Processing: Raw conversion and calibration with ImagesPlus (dark frames only, no bias or flat frames); Aligning and combing with Registar; Levels, curves, crop/resize, JPEG conversion with Photoshop CS.


Remarks: temperature at end: 22F on 2006/11/21 and 33F on 2006/11/24





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Taken on September 29, 2007