The Sharpless catalog of emission nebulae contains 313 entries representing H-II emission nebulae with a declination of
-27 degrees or above. Compiled and published by American astronomer Stewart Sharpless (USNO) in 1959 (see
here), the catalog contains
a wide variety of star formation regions across the Milky Way including various Herbig-Haro and Wolf-Rayet objects
as well as a number of well-known emission nebulae such as the Trifid (M20), the Eagle (M20), Orion (M42), Lagoon (M8),
the Crescent and the Crab (M1) and the Pleiades (M45) reflection nebula.
Note: For an excellent article on the Sharpless catalog, see Astronomy Magazine (Aug/2007:
52-57). Another excellent (online) reference of the complete Sharpless catalog including supplementary information is
available here.
| Sharpless Catalog of H-II Emission Nebulae | |||||
|---|---|---|---|---|---|
 Sh2-103 in Cyg Eastern Veil Nebula |
 Sh2-117 in Cyg Pelican Nebula |
 Sh2-117 in Cyg Pelican Nebula |
 Sh2-142 in Cep Wizard Nebula |
 Sh2-157 in Cas |
|
 Sh2-184 in Cas Pacman Nebula |
|||||
 Sh2-25 in Sgr Lagoon Nebula |
 Sh2-30 in Sgr Trifid Nebula |
 Sh2-45 in Sgr Swan Nebula |
 Sh2-49 in Ser Eagle Nebula |
 Sh2-84 in Sge |
|
 Sh2-86 in Vul |
 Sh2-96 in Cyg |
||||
 Sh2-101 in Cyg Tulip Nebula |
 Sh2-105 in Cyg Crescent Nebula |
 Sh2-112 in Cyg Clown Face Nebula |
 Sh2-116 in Cyg |
 Sh2-119 in Cyg Western Veil Nebula |
|
 Sh2-125 in Cyg Cocoon Nebula |
 Sh2-131 in Cep Elephant Trunk Nebula |
 Sh2-132 in Cep |
 Sh2-155 in Cep Cave Nebula |
 Sh2-162 in Cas Bubble Nebula |
|
 Sh2-171 in Cep |
 Sh2-173 in Cas Phantom of the Opera |
 Sh2-176 in Cas |
 Sh2-185 in Cas |
 Sh2-190 in Cas Heart Nebula |
|
 Sh2-244 in Tau Crab Nebula |
 Sh2-274 in Gem Medusa Nebula |
 Sh2-279 in Ori Running Man Nebula |
|||