Astrophysics (Index)About

Sharpless Catalog

(catalog of HII regions found on Palomar plates)

The Sharpless Catalog is a list of HII regions assembled by Stewart Sharpless in the 1950s from Palomar Observatory Sky Survey (POSS) plates. The second/final edition of 1959 included 312 such nebulae (including all the earlier 1953 catalog, other than two which had since been identified as something other than HII regions).

Further reading:
Sh1Sh1-891st catalog
Sh2Sh2-106or "Sharpless 106" or "Sh 106"