Concept information
Preferred term
Comae
Definition
- The nebulous envelope around the nucleus of a comet, formed when the comet passes close to the Sun. (en)
Broader concept
- Comets (en)
Narrower concepts
- Coma dust (en)
- Ionized coma gases (en)
- Neutral coma gases (en)
Entry terms
- Comas (en)
- Cometary atmospheres (en)
- Comet atmospheres (en)
Contributor
Editorial note
- _:genid1
- _:genid2
- 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 (en)
URI
http://astrothesaurus.org/uat/271
{{label}}
{{#each values }} {{! loop through ConceptPropertyValue objects }}
{{#if prefLabel }}
{{/if}}
{{/each}}
{{#if notation }}{{ notation }} {{/if}}{{ prefLabel }}
{{#ifDifferentLabelLang lang }} ({{ lang }}){{/ifDifferentLabelLang}}
{{#if vocabName }}
{{ vocabName }}
{{/if}}