Mira Ceti

star
also called  Omicron Ceti 
 first variable star (apart from novae) to be discovered, lying in the southern constellation Cetus, and the prototype of a class known as long-period variables, or Mira stars. There is some evidence that ancient Babylonian astronomers noticed its variable character. In a systematic study in 1638, a Dutch astronomer, Phocylides Holwarda, found that the star disappeared and reappeared in a varying cycle of about 330 days. It thus acquired the name Mira (Latin: Miraculous). Its brightness varies from cycle to cycle, but generally it is about magnitude 3 at maximum light and magnitude 9 at minimum. Mira is a binary; the red giant primary has a faint bluish white companion.

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Universalium. 2010.

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  • Mira Ceti — /ˈmaɪrə ˈsitaɪ/ (say muyruh seetuy) noun a binary star, one component of which is a long period variable with an average period of 330 days. {New Latin, from Latin mira wonderful; Ceti, genitive of Cetus} …   Australian English dictionary

  • Mira Ceti Yurt — (Сет,Франция) Категория отеля: Адрес: 805 chemin des Pierres Blanches, 34200 Сет, Фр …   Каталог отелей

  • Mira — Mira,   veränderlicher Stern im Sternbild Walfisch (Mira Ceti, ο Ceti). Im Helligkeitsmaximum erreicht Mira eine scheinbare visuelle Helligkeit von rd. 2m, im Minimum sinkt sie auf etwa 10m; Mira ist dann für das bloße Auge nicht sichtbar. Die… …   Universal-Lexikon

  • Mira (estrella) — Mira o Mira Ceti es una estrella variable de la Constelación de la Ballena. Tiene un periodo medio de 330 días. Descubierta por Fabricius en 1596, fue la primera estrella pulsante de la que se tuvo constancia. Se calcula que su diámetro es una… …   Enciclopedia Universal

  • Mira variable star — /ˈmɪərə/ (say mearruh) noun Astronomy a cool pulsating red supergiant whose brightness and size cycle over a period of more than 100 days. {named after the star Mira Ceti which is of this type} …   Australian English dictionary

  • Mira (estrella) — Mira Imagen de Mira obtenida con el Telescopio espacial Hubble. Constelación …   Wikipedia Español

  • Mira — Mi ra, n. [NL., from L. mirus wonderful.] (Astron.) A remarkable variable star in the constellation Cetus ({[omicron] Ceti}). [1913 Webster] …   The Collaborative International Dictionary of English

  • Mira — For other uses, see Mira (disambiguation). Mira Mira as seen by Hubble. NASA image …   Wikipedia

  • Mira (Stern) — Datenbanklinks zu Mira (Omicron Ceti) Stern Mira (ο Ceti) …   Deutsch Wikipedia

  • Mira (Etoile) — Omicron Ceti Pour les articles homonymes, voir Mira. Mira A (ο Ceti) Données d observation …   Wikipédia en Français

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