News tagged with variable star

Ancient Egyptians described Algol's eclipses

The Ancient Egyptian papyrus Cairo 86637 calendar is the oldest preserved historical document of naked eye observations of a variable star, the eclipsing binary Algol - a manifestation of Horus, a god and a king. This calendar ...

dateDec 17, 2015 in Space Exploration
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VISTA discovers new component of Milky Way

Astronomers using the VISTA telescope at ESO's Paranal Observatory have discovered a previously unknown component of the Milky Way. By mapping out the locations of a class of stars that vary in brightness called Cepheids, ...

dateOct 28, 2015 in Astronomy
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Delta Cephei's hidden companion

To measure distances in the universe, astronomers use cepheids, a family of variable stars whose luminosity varies with time. Their role as distance calibrators has brought them attention from researchers for more than a ...

dateMay 12, 2015 in Astronomy
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Hubble sees a stellar "sneezing fit"

(Phys.org) —Look at the bright star in the middle of this image. It appears as if it just sneezed. This sight will only last for a few thousand years—a blink of an eye in the young star's life.

dateDec 29, 2013 in Astronomy
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RS Puppis puts on a spectacular light show

The NASA/ESA Hubble Space Telescope has observed the variable star RS Puppis over a period of five weeks, showing the star growing brighter and dimmer as it pulsates. These pulsations have created a stunning example of a ...

dateDec 17, 2013 in Astronomy
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