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Studies of Algol led to the Algol paradox in the theory of stellar evolution: although components of a binary star form at the same time, and massive stars evolve much faster than the less massive stars, the more massive component Algol Aa1 is still in the main sequence, but the less massive Algol Aa2 is a subgiant star at a later evolutionary ...
In traditional astrological nomenclature, the stars were divided into fixed stars, Latin stellæ fixæ, which in astrology means the stars and other galactic or intergalactic bodies as recognized by astronomy; and "wandering stars" (Greek: πλανήτης αστήρ, planētēs astēr), which we know as the planets of the Solar System.
The Behenian fixed stars are a selection of fifteen stars considered especially useful for magical applications in the medieval astrology of Europe and the Arab world. Their name derives from the Arabic bahman , "root," as each was considered a source of astrological power for one or more planets .
Looking Up: See the star Algol in the constellation Perseus slowly blink. Plus, enjoy a brilliant Jupiter and catch the Double Cluster full of stars.
Alpha Persei (Latinized from α Persei, abbreviated Alpha Per, α Per), formally named Mirfak [10] (pronounced / ˈ m ɜːr f æ k / or / ˈ m ɪər f æ k /), [11] is the brightest star in the northern constellation of Perseus, outshining the constellation's best-known star, Algol (β Persei).
The Book of Fixed Stars, a 10th-century synthesis of the comprehensive star catalogue in Ptolemy’s Almagest with local Arabic astronomical traditions on the constellations (notably the constellation system of the Anwā’). This page shows Orion (al-jabbar, "the giant"). The star Rigel in his foot derives its name from the Arabic rijl, "foot."
But there's another system, too, called sidereal astrology. An astrologer explains. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ...
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