Assertion: star's ascension | /r/HasProperty | abbreviated ra
Facets:
Source sentences:
text: Right ascension (abbreviated RA; symbol α) is the angular distance of a particular point measured eastward along the celestial equator from the Sun at the March equinox to the (hour circle of the) point in question above the earth.
text: Similarly, a star's position on the Celestial Sphere (the way the sky appears to us from Earth) is marked by Declination (abbreviation dec) and Right Ascension (abbreviation RA).