NGC 604 Comparison Table

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physical object > natural object > celestial body > nebula > H II region > gaseous nebula > NGC 604

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NGC 604 comparison table

Subject is a kind of is an instance of has image has definition

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.

NGC 604 gaseous nebula

Subject	is a kind of	is an instance of	has image	has definition
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.
NGC 604		gaseous nebula

Next gaseous nebula: North America Nebula Up: gaseous nebula Previous gaseous nebula: NGC 3603