What does beta lyrae mean?
Definitions for beta lyrae
be·ta lyrae
This dictionary definitions page includes all the possible meanings, example usage and translations of the word beta lyrae.
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Wiktionary
Beta Lyraenoun
a binary star system approximately 882 light-years away in the constellation Lyra
Wikidata
Beta Lyrae
Beta Lyrae is a binary star system approximately 960 light-years away in the constellation Lyra. Beta Lyrae has the traditional name Sheliak, from الشلياق šiliyāq, the Arabic name of the constellation Lyra. The Bayer designation for this star was given by the German astronomer Johann Bayer with the publication of his star atlas Uranometria in 1603. It was given the Flamsteed designation 10 Lyrae by John Flamsteed in 1712 with the first publication of his star catalogue. The variable luminosity of this system was discovered in 1784 by the British amateur astronomer John Goodricke. Beta Lyrae is a semidetached binary system made up of a stellar class B7II primary star and a secondary that is probably also a B-type star. The brighter, less massive star in the system was once the more massive member of the pair, which caused it to evolve away from the main sequence first and become a giant star. Because the pair are in a close orbit, as this star expanded into a giant it filled its Roche lobe and transferred most of its mass over to its companion. The secondary, now more massive star is surrounded by an accretion disk from this mass transfer, with bipolar, jet-like features projecting perpendicular to the disk. This accretion disk blocks our view of the secondary star, lowering its apparent luminosity and making it difficult for astronomers to pinpoint what its stellar type is. The amount of mass being transferred between the two stars is about 2 × 10–5 solar masses per year, or the equivalent of the Sun's mass every 50,000 years, which results in an increase in orbital period of about 19 seconds each year.
Numerology
Chaldean Numerology
The numerical value of beta lyrae in Chaldean Numerology is: 6
Pythagorean Numerology
The numerical value of beta lyrae in Pythagorean Numerology is: 8
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"beta lyrae." Definitions.net. STANDS4 LLC, 2024. Web. 28 Apr. 2024. <https://www.definitions.net/definition/beta+lyrae>.
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