Sharpless 2-104 - a closer view

Posted by dcrowson
on Saturday, October 27, 2018

Sharpless 104 (LBN 195, DWB 14 ( and others) is a bright, circular emission nebula approximately 13,000 light-years away in Cygnus. The stars ‘in’ the nebula are cataloged as open cluster Dolidze 4.

Ha – 24x1800s – 720 minutes – binned 1x1
RGB – 8x300s – 40 minutes each – binned 2x2

840 minutes total exposure – 14 hours

Imaged over seven nights in September and October, 2018 at Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG STF-8300M on an Astro-Tech AT12RCT at f/8 2432mm.


See my much wider view taken with a refractor here -

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