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Algol - Wikipedia
Algol, the "Demon Star" - Cosmic Pursuits
Algol (Beta Persei): Star System, Facts, Name, Location, Constellation | Star Facts
Algol - Beta Persei - β Per - The Demon Star | freestarcharts.com
Watch for Algol at its minimum - Society for Popular Astronomy
Eclipsing Binary Star Algol (Beta Persei)
Mobile Astronomy: Watch the 'Demon Star' Change in Brightness in a Single Night | Space
Perseus
Algol (β Persei) | Facts, Information, History & Definition
Beta Persei | Dæva | Furious Hooves
Algol (Beta Persei): Eclipsing Variable Star in Perseus – Constellation Guide
Ejemplo práctico 1: Algol (beta Persei) | Estrellas Variables
December- Pleiades, Beta Persei, M34
Guide to Algol (Beta Persei) - Variable Star Section
Beta Persei (β Persei) or Algol... - Sky Observer Group
Algol - β Persei (beta Persei) - Star in Perseus | TheSkyLive.com
Algol (Beta Persei): Star System, Facts, Name, Location, Constellation | Star Facts
Beta Persei | Dæva | Furious Hooves
An impression of the system Algol (Beta Persei). A blue spectral class B8 star with a diameter of 3 solar diameters and red-yellow spectral class K2 star of about 3.5 solar diameters
When Algol Winks, Will You Wink Back? - Sky & Telescope - Sky & Telescope
Algol - Wikipedia
Algol - Wikipedia
