right ascension

From Glossary of Meteorology
In astronomy, the angular distance measured eastward along the celestial equator from the vernal equinox to the hour circle (celestial meridian) of the celestial body in question.

Right ascension and declination are the two principal coordinates used in positional astronomy.

In astronomy, the angular distance measured eastward along the celestial equator from the vernal equinox to the hour circle (celestial meridian) of the celestial body in question.

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