Posted by dcrowson
on Thursday, March 16, 2023
M93 (NGC 2447, Collinder 160 and others) is a trumpler (https://en.wikipedia.org/wiki/Trumpler_classification) class I 3 r open cluster approximately 3,320 light-years away in Puppis.

Luminance – 36x300s – binned 1x1 – 180 minutes
RGB – 8x180s – 24 minutes each – binned 2x2

252 minutes total exposure – 4 hours 12 minutes

Imaged January 30th, February 10th and March 9th and 12th, 2023 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/52752192814/sizes/l/

See my previous refractor image here - https://www.flickr.com/photos/dcrowson/24328142844.

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