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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 planetary nebulae; List of protoplanetary nebulae;
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. ...
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) [44] H II region: Veil Nebula: 100–130 ly (31–40 pc) [45] Supernova remnant: Located in the Cygnus Loop: NGC 3576: 100 ly (31 pc) [46] Emission nebula: N41: 100 ly (31 pc) [47] Emission nebula ...
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 .
The name "Abell" is also commonly used as a designation for objects he compiled in a catalogue of 86 planetary nebulae in 1966. The proper designation for the galaxy clusters is ACO, as in "ACO 13", while the planetary-nebula designation is the single letter A, as in "A 39".
Pages in category "Nebulae" The following 23 pages are in this category, out of 23 total. This list may not reflect recent changes. ...
This nebula was also observed by Johann Baptist Cysat in 1618. However, the first detailed study of the Orion Nebula was not performed until 1659 by Christiaan Huygens, who also believed he was the first person to discover this nebulosity. [11] In 1715, Edmond Halley published a list of six nebulae.