Mira
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 Ultraviolet mosaic of Mira's bow shock and tail obtained using NASA's Galaxy Evolution Explorer (GALEX). |
Mira ( or ) also known as Omicron Ceti (ο Ceti, ο Cet), is a red giant star estimated 200-400 light years away in the constellation Cetus. Mira is a binary star, consisting of the red giant Mira A along with Mira B. Mira A is also an oscillating variable star and was the first non-supernova variable star discovered, with the possible exception of Algol. Apart from the unusual Eta Carinae, Mira is the brightest periodic variable in the sky that is not visible to the naked eye for part of its cycle. Its distance is uncertain; pre-Hipparcos estimates centered around 220 light-years, while Hipparcos data suggest a distance of 418 light-years, albeit with a margin of error of ~14%.
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| Mira – Bizarre Star at NASA Mira – Bizarre Star at NASA www.nasa.gov/mission_pages/galex/20070815/ - Web |
| History of Mira's Discovery History of Mira's Discovery www.aavso.org/vstar/vsots/mirahistory.shtml - Web |
| Mira has tail nearly 13 light years in length (BBC... Mira has tail nearly 13 light years in length (BBC) news.bbc.co.uk/1/hi/sci/tech/6947607.stm - Web |
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| Speeding Bullet Star Leaves Enormous Streak Across... Speeding Bullet Star Leaves Enormous Streak Across Sky www.galex.caltech.edu/MEDIA/2007-04/ - Web |
| SEDS article SEDS article seds.org/~spider/Spider/Vars/mira.html - Web |
| OMICRON CETI (Mira) OMICRON CETI (Mira) www.aavso.org/vstar/vsots/1298.shtml - Web |
| Winter 2006: Omicron Ceti (Mira) Winter 2006: Omicron Ceti (Mira) www.aavso.org/vstar/vsots/winter06.shtml - Web |
