Right Ascension is a celestial coordinate, like longitude, measuring eastward along the Celestial Equator from the Vernal Equinox. This cosmic "east-west" measure, paired with Declination, pinpoints stars and galaxies across the sky.
Right Ascension is a celestial coordinate, like longitude, measuring eastward along the Celestial Equator from the Vernal Equinox. This cosmic "east-west" measure, paired with Declination, pinpoints stars and galaxies across the sky.