NGC 2261 is a variable reflection nebula located in the constellation Monoceros, at about 2.500 light-years away. The nebula is illuminated by the star R Monocerotis and it manifests ch...
The Pencil Nebula (NGC 2736) is a small part of the Vela Supernova Remnant, which occupies the upper half of this image. Several nebulae from the RCW catalogue are visible too (RCW35 to...