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Andromeda Galaxy in monochrome on Feb 18 2019.jpg

This is my image of the Andromeda Galaxy, Messier 31, which I captured on Jan 24 2019 and earlier using my C-11 SCT and ATIK460EX camera. The total image consists of 4 individual images which I merged together; Four images were required because the galaxy extends over a very large 3 degrees of the night sky.  I captured M31 over multiple nights in December 2018 and January 2019 using a blue color filter on the following dates; please note the number of frames and exposure times for each of the 4 images on the dates specified.  For example "18x6mins" refers to 18 frames each having an exposure time of 6 minutes.

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Blue filter image : Dec 5 2018 -- 18x6mins = 108mins
Blue filter image: Jan 5 2019 -- 20x7mins = 140mins
Blue filter image: Jan 6 2019 -- 18x7mins = 126mins
Blue filter image:    Jan 24 2019 -- 12x8 mins = 96mins

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Total Integration Time = 6 hours

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​In addition to the C-11 SCT I used an ATIK460EX main imaging camera, a Lodestar X2 guide camera, an On Axis Guider (ONAG), an F/6.3 Reducer, a Starlight Instruments motorized programmable focuser control system, all components were supported on a Losmandy G-11 mount controlled by a Gemini 2 mount controller.
 

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