Mira

|caption=Location of Mira (circled) }}

| dec = | appmag_v = 2.0 ''to'' 10.1 }}

| b-v = +1.53 | u-b = +0.08 | variable = Mira }}

|period=497.88 |axis=0.8 |eccentricity=0.16 |inclination=112 |node=138.8 |periastron=2285.75 |periarg=258.3 }}

Mira (), designation Omicron Ceti (ο Ceti, abbreviated Omicron Cet, ο Cet), is a red-giant star estimated to be 200–300 light-years from the Sun in the constellation Cetus.

ο Ceti is a binary stellar system, consisting of a variable red giant (Mira A) along with a white dwarf companion (Mira B). Mira A is a pulsating variable star and was the first non-supernova variable star discovered, with the possible exception of Algol. It is the prototype of the Mira variables. Provided by Wikipedia