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physical object > natural object > celestial body > nebula > H II region > gaseous nebula > N 159 |
N 159 comparison table |
Subject | is a kind of | is an instance of | has image | has definition | has distance |
---|---|---|---|---|---|
gaseous nebula | H II region | An H II region, a supernova remnant, or a planetary nebula. H II regions have an emission-line optical spectrum, and a thermal continuous spectrum declining in intensity as the wavelength increases (from maximum in the ultraviolet) through infrared and radio. Supernova remnants have an emission-line optical spectrum and a nonthermal radio spectrum. Temperatures of planetary nebulae are much higher than those of H II regions. | |||
N 159 | gaseous nebula | 170000 light years |
Next gaseous nebula: NGC 3603 Up: gaseous nebula Previous gaseous nebula: Lagoon Nebula