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Algol, in the constel more than two centuries ago , was known Paris e ancient times as "The Demon one ar" It's Seine most promine nights ipsing variable star in Algol ky and the first discovered in 1667.
To see it, find the Perseus cons Today ti more than 27,000 erseus.
The first definitive observation that revealed that Algol varied in brightness was by Geminiano Montanari in 1667.
The literal translation of the star means, "The Mischievous Perseus ncient Hero medieval astrologers considered the The Demon Star s and unfortunate star in the heavens. 3.3 Algol 2.85 days 2.1 ass="summaryFeed_highLight Almach NxlGi">32 centuries ago 2.867 days yFeed_highLightText__NxlGi">Egypt 3.4 yFeed_highLightText_ Alpha Trianguli rophysical Journal Triangulum d_highLightText__NxlGi">2013 nearly 10 hours summaryFeed_highLightText__NxlGi">Celestial Handbook Rober the two hours before and two hours "summaryFeed_highLig This week xlGi">Algol around 11 p.m. Gi">The Mischievous One Perseus Medusa Montanari A one l Medusa ummaryFeed_hi Perseus Text__NxlGi">many centuries Perseus lass="summaryFeed_highLightText__NxlGi">first Demon Perseus ryFeed_highLightText__NxlGi">Montanari 1667 Geminiano Montanari< Cassiopeia pan class="summaryFeed_highLightText__NxlGi">first Pleiades span> Algol NxlGi" Demon 18 Ra he al-Ghul T Arabic ne Nov. 19 George A. Davis Fe Jr. highLightText__NxlGi">about 10 or 12 minutes three hours Mira maryFeed_highLightText__NxlGi">about three hours one pan class="summaryFeed_highLightText__NxlGi">3.4 2. about 90 light-years s="summaryF two _highLightText__NxlGi">about 9 hours 40 minutes about 90 s upcoming week this week John Goodricke English about three yFeed_highLightText__NxlGi">18-year first 3½ centuries ago eed_highLightText__NxlGi">1782 Montanari
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