Gary Imm

GaryI

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A backyard amateur astrophotographer enjoying retirement with my wife on beautiful Lake Livingston in Onalaska, Texas, about 90 minutes north of Houston.

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Sharpless Catalog (200/313) A collection by Gary Imm

Stewart Sharpless created the Sharpless catalog of HII regions (emission nebulae) in 1959. The list is intended to be comprehensive north of declination −27°. The catalog prefix is Sh2 because this list of 313 objects is his second catalog version.

The images below begin with two Sh1 objects from the first catalog version. These 2 objects were discovered to be planetary nebula soon after the first catalog was published. They were subsequently left out of the second catalog version.

After the 2 Sh1 objects, the Sh2 objects are sorted in order below starting with Sh2-001.

Images in this collection Parent collection:  Nebula Catalogs