NGC 2359, Thor's Helmet, at lower left, in Canis Major, is a bubble-like complex of nebulosity that is illuminated by a hot Wolf-Rayet star. It is about 50 light years wide and located about 15, 000 light years away. It gets its green-blue color from oxygen atoms emitting light in the gas that makes up the nebula. IC 2177, the Seagull Nebula, is a large area of emission nebulosity located on the border between Monoceros and Canis Major, about 7.5 degrees northeast of Sirius. The brightest portion is the head of the bird, cataloged as NGC 2327, surrounds an 8th magnitude star, and is nearly bisected by an interesting dark lane that stretches from the star eastward. IC2177 makes up the wings and body of the Seagull. At a distance of about 3, 800 light years, the nebula spans some 250 light years in space. Several open clusters are also involved in this area of nebulosity, the most prominent being NGC 2335, located on the northern wing of the figure of | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Lodriguss, Gerard |
Taille de l’image : | 4146 px × 2764 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |