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A lovely constellation that straddles the Milky Way is Perseus, the hero, which is visible in the northern skies from July to March. Its stars arc from Capella, in the constellation Auriga, to the "W" ...

Ancient Egyptians may have chronicled the flickering of a star known as "the Demon," perhaps the earliest known record of a variable star, astronomers suggest. The ancient Egyptians wrote calendars ...

There is a group of variable pairs of stars known as Algol-type binaries. They are named after the prototype member of this class: Algol, a bright multiple star system in the Perseus constellation. In ...

This week, between 11 p.m. and midnight local time, the constellation immortalizing one of the greatest heroes of Greek mythology — Perseus — will pass directly overhead. Its prominent variable star, ...

This month, I’d like you to find the celestial ghoul’s head and watch for its “evil eye” to wink. I’m referring to Algol (Beta [β] Persei), the most enchanting naked-eye variable star in the night sky ...