Sharpless Catalog
(Sh2)
(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 sources which had since been
identified as something other than HII regions).
(catalog,clouds,HII)
Further reading:
https://en.wikipedia.org/wiki/Sharpless_catalog
https://ui.adsabs.harvard.edu/abs/1959ApJS....4..257S/abstract
https://ui.adsabs.harvard.edu/abs/1953ApJ...118..362S/abstract
| Prefix | Example | | |
| S | S 35 | short for Sh2-35 | |
| Sh1 | Sh1-89 | 1st catalog | |
| Sh2 | Sh2-106 | or "Sharpless 106" or "Sh 106" | |
|
Index