Orion A Comparison Table

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Orion A comparison table

Subject has definition is a kind of is an instance of

radio source A source of extraterrestrial radio radiation. The strongest known is Cassiopeia A, followed by Cyg A and the Crab Nebula (Tau A) (the capital letters following the name of a constellation refer to the radio sources of the constellation, A being the strongest source). Radio sources are divided into two main categories: Class I, those associated with our Galaxy (which is a weak radio source), and Class II, extragalactic sources. Most radio sources are galaxies, supernova remnants, or H II regions. celestial body

Orion A A radio continuum feature (an H II region) centered on the Trapezium, and excited by θ¹ Ori C. The Orion A molecular cloud, which lies beyond it, is a rich source of molecules CO, OH, HCN, and probably NO, HCO, and H₂CO have been observed. radio source

Subject	has definition	is a kind of	is an instance of
radio source	A source of extraterrestrial radio radiation. The strongest known is Cassiopeia A, followed by Cyg A and the Crab Nebula (Tau A) (the capital letters following the name of a constellation refer to the radio sources of the constellation, A being the strongest source). Radio sources are divided into two main categories: Class I, those associated with our Galaxy (which is a weak radio source), and Class II, extragalactic sources. Most radio sources are galaxies, supernova remnants, or H II regions.	celestial body
Orion A	A radio continuum feature (an H II region) centered on the Trapezium, and excited by θ¹ Ori C. The Orion A molecular cloud, which lies beyond it, is a rich source of molecules CO, OH, HCN, and probably NO, HCO, and H₂CO have been observed.		radio source

Next radio source: Orion B Up: radio source Previous radio source: North Polar Spur