the figure of the moon in its first or last quarter, resembling a segment of a ring tapering to points at the ends
the fainter of the two stars that constitute a double or binary star
the distance traversed by light in one mean solar year, about 5.88 trillion mi. (9.46 trillion km)
a bright red supergiant star in the constellation Orion
any of various groups of stars to which definite names have been given and the section of the heavens occupied by such a group, such as Ursa Major, Andromeda
a zodiacal constellation between Virgo and Serpens also called the Balance