Astronomy - Changes in brightness of eclipsing binary star Algol or Beta Persei. Illustration.

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Size: 1838px × 3802px
Photo credit: © De Agostini Picture Library / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: arrow, astronomy, astrophysics, cosmology, cycle, diagram, gravitation, motion, orbit, people, planet, scheme, sign, spinning, star, time, vertical