o Ceti


Omicron Ceti is Mira, the Admirable One, or simply ‘Wonderful’, the most notable of all variables.

Mira changes its magnitude from a usual ninth-magnitude (barely seen with binoculars) to a very bright third-magnitude every 331 days.
     The recently published data from Hipparcos gives Mira a visual magnitude of 2.0 and a distance of 418 light years, about half the distance it was formerly thought to have.

As the period is very nearly eleven months, Mira's annual return to brilliance is a regular occurance eagerly awaited by many amateur astronomers. In 2000 this return should occur in late September, and as such, the constellation will be visible only in the early hours of the morning. (This year, 1999, the maximum should occur in late October, with Saturn and Jupiter in the same general region, north of Mira.)

To find Mira, starhop from alpha, down to gamma and delta, thence to 75 Ceti: binoculars.

You can also get to Mira from alpha Piscium: drop down one and a half fields southeast of alpha Piscium.


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© 1999-2000 by Richard Dibon-Smith.