Omicron Ceti

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Omicron Ceti:

see MiraMira
, [Lat.,=marvelous], variable star in the constellation Cetus; Bayer designation Omicron Ceti; 1992 position R.A. 2h19.0m, Dec. −3°05'. The most famous long-period variable, Mira ranges in apparent magnitude from a maximum of about 2.
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References in periodicals archive ?
The first variable star to be discovered was Omicron Ceti.
Omicron Ceti, the prototype Mira star, revealed itself to the Hubble Space Telescope as an irregular blob about 60 milliarcseconds wide.
Other variable stars were discovered in the 17th century, but only Omicron Ceti was observed systematically.