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Search 3,721 documents across 34 fields — every claim tier-rated by evidence

3,721 Documents 34 Sections 43,625 Citations 34,852 Keywords Indexed 4 Evidence Tiers

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2 results for "Algol"

ZH_5_17 Credible Archaeoastronomy

ZH_5_17 — Ancient Variable Star Observations (Algol)

Algol (Beta Persei, the "Demon Star") — a second-magnitude eclipsing binary star in the constellation Perseus that dims dramatically every 2.867 days as its fainter companion transits the primary star — may have been rec

Algol variable star eclipsing binary Beta Persei ancient observation Cairo Calendar

Q_2_09 Verified Cosmology & Physics

Q_2_09 — Binary Star Systems and X-Ray Sources

Most stars in the Milky Way exist in binary or multiple-star systems — estimates range from ~50% for solar-type stars to >70% for massive O/B stars. Binary star interactions drive some of the most energetic phenomena in

binary stars X-ray binary Roche lobe accretion disk mass transfer neutron star

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