Sh 2-230: A HII-Region Comprising Many More Deep-Sky Object

Martin Timpe — Wed, 10 Jan 2024 00:50:00 GMT

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).

Sharpless 2-230 comprising Sh 2-234 (IC 417), Sh 2-236 (IC 410, NGC 1893), Sh 2-229 (IC 405), M38 (NGC 1912) and NGC 1907

NGC 2237 The Rosette Nebula

Martin Timpe — Mon, 07 Mar 2022 19:00:00 GMT

The rosette nebula NGC 2237 is a H-II emission region in the constellation monoceros (unicorn). Its distance to our solar system was measured to be roughly 5.200 light years and its diameter to about 130 light years. A mass estimate yields approximately 10.000 solar masses.

Imgage data: Telescope Skopos f=560x0,8=448mm @f/5.6, Camera Atik 460EXM, 17x600s Ha, 12X600s O[III], 51/52/53x120s RGB

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Sh 2-230: A HII-Region Comprising Many More Deep-Sky Object

NGC 2237 The Rosette Nebula