Definition of Mira
- To see a star that varies intrinsically in brightness, we have to wait until late summer and fall. Mira, in the constellation Cetus the Whale, is the sky's best slowly varying red giant. Mira climbs from invisibility (at 9th magnitude) to 4th magnitude and then fades again roughly every 330 days.
- —Alister Ling, Astronomy, January 1992