The Unified Astronomy Thesaurus

Comae

http://astrothesaurus.org/uat/271

alt label
Comet atmospheres
Cometary atmospheres
Comas
dcterms modified equal to or less than 2019-12-13T15:56:28.172Zequal to or more than 2019-12-13T15:56:28.172Z
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http://astrothesaurus.org/uat/280 original
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271 original
definition The nebulous envelope around the nucleus of a comet, formed when the comet passes close to the Sun.
editorial note Needs disambiguation or creation of at least two separate terms. Wikipedia, Coma (cometary): "In astronomy, a coma (from the Greek κόμη, "hair") is the nebulous envelope around the nucleus of a comet." WIkipedia, Coma (optics): "In optics (especially telescopes), the coma (aka comatic aberration) in an optical system refers to aberration inherent to certain optical designs or due to imperfection in the lens or other components which results in off-axis point sources such as stars appearing distorted, appearing to have a tail (coma) like a comet. Specifically, coma is defined as a variation in magnification over the entrance pupil. In refractive or diffractive optical systems, especially those imaging a wide spectral range, coma can be a function of wavelength, in which case it is a form of chromatic aberration." -BG
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http://astrothesaurus.org/uat/2158 original
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271 original
http://astrothesaurus.org/uat/2159 original
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http://astrothesaurus.org/uat/277 original
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271 original
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contributor AAS_Frey.Katie original