The Algol star system is known as an eclipsing binary pair, As such, one star moves in front of the other, blocking it's light. Because the pair are in line with the Earth, it has the effect that one stars seems to disappear.
See related link for an animation of the effect.
Algol (Demon Star) is a bright star in the constellation Perseus.Algol is actually a triple star system - Beta Persei A, B, and CBeta Persei A has a spectral type of B8 and is a blue-white giantBeta Persei B has a spectral type of K0 and is an orange subgiantSee related link for more information.
At the moment no planets have been detected, which is not surprising as it's a binary star system (possibly triple star).
Algol is a triple star system.Aldebaran: 4,010KAlgol A: 12,000K
I'm pretty sure Algol is 105 light years away.
The "Demon Star" is Beta Persi, which means it is the second brightest star in the constellation Perseus. Its official name is Algol. It is also the first variable star (in increases and decreases in brightness) that was ever found. The reason for its variability is the fact that it is not one star but two orbiting each other in close proximity. (It is a binary star)
Algol is in the constellation Perseus.
Algol is a bright three-star system that is part of the constellation Perseus. Other names for Algol are Demon Star, Gorgona, and El Ghoul.
algol
Algol (Demon Star) is a bright star in the constellation Perseus.Algol is actually a triple star system - Beta Persei A, B, and CBeta Persei A has a spectral type of B8 and is a blue-white giantBeta Persei B has a spectral type of K0 and is an orange subgiantSee related link for more information.
Algol is a blue main-sequence star in the constellation Perseus
Algol Sirius (Dog Star) has a radius of 1.711 Solar masses. Algol (El Ghoul or demon) has a radius of 2.3 Solar masses.
At the moment no planets have been detected, which is not surprising as it's a binary star system (possibly triple star).
Algol is a triple star system.Aldebaran: 4,010KAlgol A: 12,000K
Algol
I didn't know there was one called Maria but Algol is Arabic for 'The Ghoul'.
In some binary systems, the less-massive star has become a giant, while the more-massive star is still on the main sequence. If higher-mass stars evolve faster than lower-mass stars, how do the lower-mass stars in such binaries manage to leave the main sequence first? This is called the Algol paradox, after the binary system Algol.
I'm pretty sure Algol is 105 light years away.