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M31 mosaic

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About this observation
Observer
Nick James
Time of observation
05/09/2020 - 20:30
Object
M31
Observing location
Chelmsford, UK
Equipment
Celestron HD11 + FLI6303
Exposure
12 panels of 2x120s
Tags

I've been playing around with automatically generating mosaics. This is last night's effort on M31. My C11 system has a FoV of 34x22 arcmin  (Celestron HD11 and a KAF-6303 CCD). The telescope is scripted to take the individual panels, in this case 2 exposures of 120s for each of the 15 panels. The images are then calibrated and background normalised using my normal pipeline, plate solved using a local version of astrometry.net and combined into a mosaic using swarp. There is no human intervention in this. The background normalisation isn't brilliant but the general process works quite well giving something like 3 square degrees of coverage to mag 19.5 in an hour. Not quite LSST though!

The full resolution version is here.

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