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The following is an incomplete list of known planetary nebulae. Image Name Messier Catalogue [a] NGC [a] Other designation [a] Date discovered [a] Distance [a] [b]
The following articles contain lists of nebulae: List of dark nebulae; List of diffuse nebulae; List of largest nebulae; List of planetary nebulae;
In his study of nebulae on the Palomar Sky Survey plates in 1959, American astronomer Stewart Sharpless realised that the North America Nebula is part of the same interstellar cloud of ionized hydrogen (H II region) as the Pelican Nebula, separated by a dark band of dust, and listed the two nebulae together in his second list of 313 bright ...
The Sharpless catalog is a list of 313 H II regions (emission nebulae) intended to be comprehensive north of declination −27°. (It does include some nebulae south of that declination as well.) (It does include some nebulae south of that declination as well.)
Pages in category "Lists of nebulae" The following 7 pages are in this category, out of 7 total. This list may not reflect recent changes. ...
This is a list of diffuse nebulae. Most nebulae are diffuse , meaning that they do not have well-defined boundaries. Types of diffuse nebulae include emission nebulae and reflection nebulae .
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Only 36 stars were known to be in this nebula but the Chandra telescope increased the number of known stars to 160. Lagoon Nebula: 110 ly (34 pc) [46] H II region: Veil Nebula: 100–130 ly (31–40 pc) [47] Supernova remnant: Located in the Cygnus Loop: NGC 3576: 100 ly (31 pc) [48] Emission nebula: N41: 100 ly (31 pc) [49] Emission nebula ...