Open cluster M103

Posted by dcrowson
on Sunday, November 26, 2017

M103 (NGC 581 and others) is a trumpler (https://en.wikipedia.org/wiki/Trumpler_classification) class II 2 m open cluster located approximately 10,000 light-years away in Cassiopeia.

Luminance – 12x300s – binned 1x1 – 60 minutes
RGB – 8x180s – 24 minutes each – binned 2x2

132 minutes total exposure – 2 hours 12 minutes

Imaged November 23rd, 2017 from Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG STF-8300M on an Astro-Tech AT12RCT at f/8 2432mm.

LRGB - https://www.flickr.com/photos/dcrowson/37945437404/sizes/l

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