Mira variables are a class of pulsating stars characterized by very red colours, pulsation periods longer than 100 days, and amplitudes greater than one magnitude in infrared and 2.5 magnitude at visu

Mira, pronounced, is a binary star system in the constellation Cetus. It has the Bayer designation Omicron Ceti, which is Latinized from ο Ceti, and abbreviated Omicron Cet or ο Cet. The system consis