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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 ...
Alpha Persei (Latinized from α Persei, abbreviated Alpha Per, α Per), formally named Mirfak [11] (pronounced / ˈ m ɜːr f æ k / or / ˈ m ɪər f æ k /), [12] is the brightest star in the northern constellation of Perseus, outshining the constellation's best-known star, Algol (β Persei).
Astrolog can do forms of locational astrology such as astrocartography. [1] Recent versions use the tz database for time zone and daylight saving time detection. All versions of Astrolog have been distributed with source code, and the most recent versions are free software under the GNU General Public License. Several different parties have ...
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.
According to Ptolemy, variations in the magnitude of fixed stars portends wind from the direction in which the star lies. [7] Etymologically, the word meteor describes any phenomenon in the heavens, and derives from the Greek μετέωρον ( meteōron ), signifying anything in the sky or above the earth; this is the shared origin of English ...
Among the wonders easily visible on a January evening is the constellation Perseus, the Champion. At around 8 p.m., he is straight overhead as seen from mid-northern latitudes.
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A few hundred fixed-purpose astrology computers were made. One of which, the Digicomp DR-70 Astrology Minicomputer, [6] was used by Nancy Reagan's astrologer Joan Quigley beginning in about 1981. [7] Astrology software has been made available in the open-source model, starting with the release of Astrolog in 1991.