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Ptolemy listed 26 stars in Perseus and described how they could be used to create an outline of the flying hero’s body: his winged feet, the left hand grasping Medusa’s snake-haired head and the right hand brandishing the blood-spattered sword with which he had decapitated her.
Eta Persei (η Persei, abbreviated Eta Per, η Per), is a binary star and the 'A' component of a triple star system (the 'B' component is the star HD 237009) [8] in the constellation of Perseus. Parallax measurements by the Gaia spacecraft imply that it is 1,000 is light-years away from Earth. [1]
14 gru 2023 · Ask any astronomer to name the most famous variable star in the sky and many will say Algol, the eclipsing binary in Perseus whose variations were first reported in 1670 by the Italian astronomer Geminiano Montanari.
22 kwi 2020 · Algol, Beta Persei (β Per) is a triple star system located at a distance of 90 ly from Earth in the constellation Perseus. Commonly known as the Demon Star, it is the best-known eclipsing variable star in the sky.
Zeta Persei: The third brightest star in Perseus is a blue-white supergiant with a magnitude of 2.86. X Persei: This is a binary star system. One of its two members is a neutron star.
5 sie 2012 · Algol (beta-Persei, SAO 38592) also known as the " Demon Star " is an eclipsing binary star, so an orbiting star eclipses Algol causing its magnitude to change from a relatively bright 2.1 to a much dimmer 3.4, every 2 days 20 hours and 49 minutes. Although Algol is an eclipsing binary, it's in fact a three-star system.
Mu Persei, Latinised from μ Persei, is a binary star system in the northern constellation of Perseus.It is visible to the naked eye as a point of light with a combined apparent visual magnitude of +4.16. [2] The distance to this system is approximately 900 light-years based on parallax measurements. [1] It is drifting further away with a radial velocity of +26 km/s.
