Algol Videos, Biography, Lyrics

Algol


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Algol Biography

| dec= | appmag_v=2.12 | constell=Perseus }} Algol (? Per / Beta Persei), known colloquially as the Demon Star, is a bright star in the constellation Perseus. It is one of the best known eclipsing binaries, the first such star to be discovered, and also one of the first (non-nova) variable stars to be discovered. Algol is actually a three star system (Beta Persei A, B and C) in which the large and bright primary Beta Persei A is regularly eclipsed by the dimmer Beta Persei B. Thus, Algol's magnitude is usually near-constant at 2.1, but regularly dips to 3.4 every 2 days, 20 hours and 49 minutes during the roughly 10-hour long partial eclipses. There is also a secondary eclipse when the brighter star occults the fainter secondary. This secondary eclipse can only be detected photoelectrically.Beta Persei, American Association of Variable Star Observers. http://www.aavso.org/vstar/vsots/0199.shtml Observation history The variability of Algol was first recorded in 166

Source: http://en.wikipedia.org/wiki/Algol
 
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Algol discography, Algol song lyrics


Algol Lyrics

"Algol" : Download all the ringtones on your cell
    Nessun brano in archivio per l'artista

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