Dr. Lauri Jetsu from the University of Helsinki has analysed observations of Algol. He argues that Algol has many companion stars which have not been detected from earlier observations. The results ...

Chinese astronomers have employed NASA's Transiting Exoplanet Survey Satellite (TESS) to observe an eclipsing binary of the Algol-type, designated V455 Car. Results of the observational campaign are ...

Here’s a little astronomical riddle for you: Which star in the late-autumn sky winks at us once every 2 days, 20 hours, and 49 minutes? Each wink lasts about 10 hours. If you identified the mystery ...

The brightness of variable stars, exemplified by Algol (Beta Persei), can be estimated by comparing their visual magnitude to nearby stars of known magnitudes. Algol, an eclipsing binary star system, ...

Lauri Jetsu, an astrophysicist at the University of Helsinki, is following a tradition that may stretch back thousands of years. For more than a decade, he’s studied the bright star Algol, one of the ...

The ancient Egyptians first spotted a flickering 'demon star' over 3,000 years ago, researchers have found. Researchers have finally confirmed the ancient Egyptian's direct knowledge of variable star ...

Astronomers have analyzed observations of Algol. They argue that Algol has many companion stars which have not been detected from earlier observations. Algol is an eclipsing binary, where the two ...

that Algol has many companion stars which have not been detected from earlier observations. The results have been published in The Astrophysical Journal. What is Algol? Algol is an eclipsing binary, ...