News tagged with variable star

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 ...

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 ...

dateDec 17, 2013 in Astronomy
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Astronomers discover new kind of variable star

Astronomers using the Swiss 1.2-metre Euler telescope at ESO's La Silla Observatory in Chile have found a new type of variable star. The discovery was based on the detection of very tiny changes in brightness ...

dateJun 12, 2013 in Astronomy
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STEREO turns its steady gaze on variable stars

(PhysOrg.com) -- Researchers have discovered 122 new eclipsing binary stars and observed hundreds more variable stars in an innovative survey using NASA's two STEREO solar satellites. The survey has been carried ...

dateApr 20, 2011 in Astronomy
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