Best Protoplanetary
Updated Daily
The Boomerang Nebula is a protoplanetary nebula in Centaurus, named in 1979 and notable as the coldest known natural object in space.
The Red Rectangle Nebula is HD 44179, a protoplanetary nebula in Monoceros discovered in 1973 and notable for its red X-shaped structure.
The Egg Nebula is CRL 2688, a bipolar protoplanetary nebula in Cygnus whose peculiar properties were first described from 1970s AFGL data.
The Calabash Nebula is OH 231.8+4.2, a protoplanetary nebula in Puppis notable for sulfur-rich gas and fast bipolar outflows.
The Frosty Leo Nebula is IRAS 09371+1212, a protoplanetary nebula in Leo notable for crystalline ice dominating its far-infrared spectrum.
The Footprint Nebula is M1-92, a bipolar protoplanetary reflection nebula in Cygnus discovered by Rudolph Minkowski in 1946.
The Westbrook Nebula is CRL 618, a bipolar protoplanetary nebula in Auriga whose fast outflows began shaping the object about 200 years ago.
The Cotton Candy Nebula is IRAS 17150-3224, a bipolar protoplanetary nebula in Scorpius noted for concentric shells seen by Hubble.
