radio masers discovered. VY CMa is embedded in the large molecular cloud Sh2-310, a large, quite local star-forming H II region—its diameter: 480 arcminutes...

listed the two nebulae together in his second list of 313 bright nebulae as Sh2-117. American astronomer Beverly T. Lynds catalogued the obscuring dust cloud...

The California Nebula (Also known NGC 1499or Sh2-220) is an emission nebula located in the constellation Perseus. Its name comes from its resemblance...

NGC 281, IC 11 or Sh2-184 is a bright emission nebula and part of an H II region in the northern constellation of Cassiopeia and is part of the Milky...

it H VIII.77. The nebula is known as S 142 in the 1959 Sharpless catalog (Sh2-142). It is extremely difficult to observe visually, usually requiring very...

Observation data: J2000 epoch Subtype Diffuse + Dark Distance 2,700 ly Constellation Monoceros Designations NGC 2264, Sh2-273 See also: Lists of nebulae...

sometimes referred to as the "Skull Nebula". It is not to be confused with NGC 246, which is also nicknamed the "Skull Nebula". The complex has the following...

2-238 Sh 2-239 Sh 2-240 Sh 2-241 Sh 2-242 Sh 2-243 Sh 2-244 Sh 2-245 Sh 2-246 Sh 2-247 Sh 2-248 Sh 2-249 Sh 2-250 Sh 2-251 Sh 2-252 Sh 2-253 Sh 2-254 Sh...

de données astronomiques de Strasbourg. Retrieved 2017-04-30. "Inflating Sh2-308". www.spacetelescope.org. Retrieved 2017-05-22. van Leeuwen, F. (2007-11-01)...

characteristics Radius 3 to 5 ly Notable features Shell around SAO 20575 Designations Bubble Nebula Sharpless 162 (Sh2-162) Caldwell 11 See also: Lists of nebulae...