angular distance vs RA
RA vs angular distanceangular distance and RA both are nouns.
| Word | Noun | Adjective | Verb | Adverb |
|---|---|---|---|---|
| angular distance | Yes | No | No | No |
| RA | Yes | No | No | No |
As nouns,
RA is a hyponym of
angular distance; that is, RA is a
word with a more specific, narrower meaning than
angular distance:
- angular distance: the angular separation between two objects as perceived by an observer
- RA: (astronomy) the equatorial coordinate specifying the angle, measured eastward along the celestial equator, from the vernal equinox to the intersection of the hour circle that passes through an object in the sky; usually expressed in hours and minutes and seconds; used with declination to specify positions on the celestial sphere
Other hyponyms of angular distance include
latitude, longitude, celestial latitude, dec, declination, celestial longitude, right ascension, HA, hour angle, true anomaly.
| angular distance (noun) | RA (noun) |
|---|---|
| the angular separation between two objects as perceived by an observer | (astronomy) the equatorial coordinate specifying the angle, measured eastward along the celestial equator, from the vernal equinox to the intersection of the hour circle that passes through an object in the sky; usually expressed in hours and minutes and seconds; used with declination to specify positions on the celestial sphere |
Words related to "angular distance"
Words related to "RA"
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