Sharpless 200

Posted by dcrowson
on Thursday, November 25, 2021
Sharpless 200 (LBN 674, PK 138+04 1, PN HDW 2 (Hartl-Dengl-Weinberger 2), PN HeWe 2 and others) is an old planetary nebula located in Cassiopeia.

Ha – 34x1800s – 1020 minutes – binned 1x1
RGB – 8x300s – 40 minutes each – binned 2x2

1140 minutes total exposure – 19 hours

Imaged over seven nights in November, 2019 and January and December, 2020 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.


This target would probably benefit from OIII. It is very faint in Ha.
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