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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 Messier catalogue comprises nearly all of the most spectacular examples of the five types of deep-sky object – diffuse nebulae, planetary nebulae, open clusters, globular clusters, and galaxies – visible from European latitudes. Furthermore, almost all of the Messier objects are among the closest to Earth in their respective classes ...
The following articles contain lists of nebulae: List of dark nebulae; List of diffuse nebulae; List of largest nebulae; List of planetary nebulae; List of protoplanetary nebulae; List of supernova remnants
This is a list of NGC objects 6001–7000 from the New General Catalogue (NGC). The astronomical catalogue is composed mainly of star clusters, nebulae, and galaxies.Other objects in the catalogue can be found in the other subpages of the list of NGC objects.
The Carina Nebula is an example of a diffuse nebula Most nebulae can be described as diffuse nebulae, which means that they are extended and contain no well-defined boundaries. [ 24 ] Diffuse nebulae can be divided into emission nebulae , reflection nebulae and dark nebulae .
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Orion Nebula: 20 ly (6.132 pc) [48] Diffuse Nebula: The closest major star formation region to Earth. [49] Crab Nebula: 11 ly (3.4 pc) [50] Supernova remnant: The remnant of a supernova that occurred in 1054 AD. [51] Bubble Nebula: 6 [52]-10 [53] [54] ly (1.84-3.066 pc) Emission nebula: Helix Nebula: 5.74 ly (1.76 pc) [55] Emission nebula ...
Sh 2-88A is an HII-type diffuse nebula excited by the type O8 star BD+25°3952. [4] Both neutral and ionized gases in Sh 2-88 are between 150 and 410 solar masses and the dust mass is about 2 to 9 solar masses.