(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
English language
Toggle Transcript
right ascension::noun | Spocien Dictionary
| Type | Words |
|---|---|
| Synonyms | celestial longitude, ra |
| Type of | angular distance |
one hour of right ascension equals fifteen degrees.
Examples of right ascension
right ascension
Right ascension and declination as seen on the inside of the celestial sphere.
From the en.wikipedia.org
Right ascension is measured continuously in a full circle towards the east.
From the en.wikipedia.org
In astronomy, the minute is a unit of angle, the minute of right ascension.
From the en.wikipedia.org
Maps of the stars in the night sky use declination and right ascension as coordinates.
From the en.wikipedia.org
Right ascension is measured eastward along the celestial equator from the primary direction.
From the en.wikipedia.org
Right ascension is the celestial equivalent of terrestrial longitude.
From the en.wikipedia.org
An object's right ascension was its ascension on a right sphere.
From the en.wikipedia.org
Pioneer 11 is at a right ascension of 18.759 hours, and at an ecliptic latitude of 3.0 degrees.
From the en.wikipedia.org
This article is about the unit of time, angle and right ascension.
From the en.wikipedia.org
