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Algol is a three-star system, consisting of Beta Persei Aa1, Aa2, and Ab – in which the hot luminous primary β Persei Aa1 and the larger, but cooler and fainter, β Persei Aa2 regularly pass in front of each other, causing eclipses.
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.
22 kwi 2020 · Algol is a prototype for a class of eclipsing variable stars known as Algol variables. These are semidetached binary star systems consisting of a main sequence star and a cooler, more evolved secondary component that fills its Roche lobe.
6 lis 2019 · Zeta Persei: The third-brightest star in Perseus is a blue-white supergiant with a magnitude of 2.86. X Persei : This a binary star system. One of its two members is a neutron star.
Sirius, one of the brightest stars in the sky, is a binary system involving one dominant bluish component and a less dominant secondary component. A number of binaries have their component stars being of different colors which makes for very attractive photos (see below).
Algol is a bright eclipsing binary system located in the northern constellation of Perseus and one of the best-known variable stars in the sky.
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]
