Sh 2-230: A HII-Region Comprising Many More Deep-Sky Object
Sh 2-230 is a very faint and extended emission nebula that encompasses a number of other a number of other Sharpless objects in the heart of Auriga. The Sharpless 2 catalogue (Sh 2) is a list of 312 HII (Hydrogen Emission Nebula) regions with the intention, to form a complete list of these objects north of declination δ = -27°. The first edition of the catalogue from 1953 was labelled Sharpless 1 (Sh 1).