Red Rectangle Nebula - protoplanetary nebula
Red Rectangle Nebula , is a protoplanetary nebula located in the constellation Monoceros .
Red Rectangle Nebula is magnitude 9 and is in size. For reference, the full moon is 30' (arc minutes) or 0.5° in size.
- Red Rectangle Nebula
- protoplanetary nebula
* One can see up to magnitude 7-8 objects with perfect eyes under ideal dark sky conditions.