right ascension concept from the Astronomy knowledge base

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right ascension
(α)

subject fact

right ascension has symbol α 2001-09-27 09:33:31.0
has definition Angular distance on the celestial sphere measured eastward along the celestial equator from the equinox to the hour circle passing through the celestial object. Right ascension is usually given in combination with declination. has source: Seidelman, P. 1992 Explanatory Supplement to the Astronomical Almanac, University Science Books, Mill Valley, CA, 2001-09-27 09:33:31.0
is an instance of equatorial coordinate component
is an instance of angle

equatorial coordinate component is a component of equatorial coordinate

angle has unit angle unit 2001-09-27 09:33:30.0

number has value 2001-09-27 09:32:57.0

right ascension	has symbol α
	has definition Angular distance on the celestial sphere measured eastward along the celestial equator from the equinox to the hour circle passing through the celestial object. Right ascension is usually given in combination with declination.
	is an instance of equatorial coordinate component
	is an instance of angle
equatorial coordinate component	is a component of equatorial coordinate
angle	has unit angle unit
number	has value