Variable star Algol
Algol | Variable, Binary, Binary System - Britannica
Algol, prototype of a class of variable stars called eclipsing binaries, the second brightest star in the northern constellation Perseus.
This Month in Astronomical History
In this column from the AAS Historical Astronomy Division, we focus on Algol — the well-known variable star that changes every 2.867 days.
The Minima of Algol - Sky & Telescope
The star Algol (β Persei) was the first eclipsing variable star ever discovered, and it's still the most famous one. You can check on it ...
"The Demon Star" Algol is an eclipsing variable star in the northern ...
Algol is an eclipsing variable star in the northern constellation Perseus that is visible from July to March.
Algol (Beta Persei): Star System, Facts, Name, Location, Constellation
Commonly known as the Demon Star, it is one of the best-known variable stars in the sky and a prototype for a class of eclipsing variable stars ...
The Demon Star, Algol 360° Experience - YouTube
This variable star episode is brought to you by Ball State University, the International Planetarium Society, and the American Association ...
Observing the Variable Star Algol - Arkansas Sky Observatories
You obviously do not need an AutoStar to find Algol, nor to find out when it is a minimum (about 3.5 magnitude). Indeed, you can compute it yourself, because ...
Algol, designated Beta Persei and known as the Demon Star, is a bright multiple star in Perseus constellation, located 93 light-years from Earth.
Mobile Astronomy: Watch the 'Demon Star' Change in Brightness in ...
Algol is among the easiest variable stars — perfect for beginner skywatchers to start with. Its naked-eye brightness dims noticeably for about ...
The Variable Star Algol | Scientific American
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Looking Up: Catch Algol, the 'winking star'
Algol is a short-period variable star. It is usually magnitude +2.3, but regularly, at intervals of two days, 20 hours and 48 minutes, the star's brightness ...
The variable star Algol - NASA ADS
425 The Variable Star Algol. GENTLEMEN,— I have to thank you for referring me to Prof. Pickering's photometric measurements of this star. I had not an ...
Catalogue of Algol type binary stars - Astronomy & Astrophysics
light curves (EA type, in the General Catalogue of Variable. Stars, GCVS). The physical difference lies in whether there has been interactive evolution. Of ...
Algol variables - Stargazers Lounge
The British Astronomical Association have merged their variable data with the American Association Variable Star Observers.
Algol type (EA) binaries - OGLE Atlas of Variable Star Light Curves
Reflection effect. In close binary systems with significant temperature differences between the components, we can observe the so-called reflection effect. This ...
How to Observe Variable Stars | High Point Scientific
Variable stars have long been recorded in the night sky, ranging as far back as possibly some 3000 years ago when the bright star, Algol, ...
Variable star | Pulsating, Light Curve, Magnitude | Britannica
Each time this happens, the brightness of the entire system fluctuates. Such an eclipsing variable is perhaps best exemplified by the binary star Algol, whose ...
See star Algol slowly blink in Perseus constellation | Looking Up
One of the constellation's brightest stars slowly blinks at you. Blink back. This is Algol, or Beta Persei, the first eclipsing variable star ever found.
Starwatch: Algol gives us a chance to marvel at a variable star
This week offers northern hemisphere observers a good opportunity to see a variable star in action. Algol is located in the constellation of ...
Note on the observed time of minimum phase of an Algol Variable Star
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