News tagged with pulsating stars

Pulsating star mystery solved

(PhysOrg.com) -- By discovering the first double star where a pulsating Cepheid variable and another star pass in front of one another, an international team of astronomers has solved a decades-old mystery. ...

Space & Earth / Astronomy

created Nov 24, 2010 | popularity 4.9 / 5 (21) | comments 5 | with audio podcast

A New Class of Variable Stars Revealed

(PhysOrg.com) -- Modern astronomy sometimes makes discoveries by looking in new places, the distant universe for example, using telescopes and instruments that extend the previous limits of detection.

Space & Earth / Astronomy

created Feb 26, 2010 | popularity 5 / 5 (5) | comments 3 | with audio podcast

A New Method of Estimating Stellar Distances

(PhysOrg.com) -- The star Chi Cygni is located about 550 light-years away, in the direction of the constellation of Cygnus the Swan. It is a notable star because, unlike the sun which still burns hydrogen ...

Space & Earth / Astronomy

created Dec 21, 2009 | popularity 4.4 / 5 (15) | comments 2

Close-up photos of dying star show our sun's fate (w/ Video)

(PhysOrg.com) -- About 550 light-years from Earth, a star like our Sun is writhing in its death throes. Chi Cygni has swollen in size to become a red giant star so large that it would swallow every planet ...

Space & Earth / Astronomy

created Dec 15, 2009 | popularity 4.8 / 5 (23) | comments 5

Brightness variations of sun-like stars: The mystery deepens

(PhysOrg.com) -- An extensive study made with ESO's Very Large Telescope deepens a long-standing mystery in the study of stars similar to the Sun. Unusual year-long variations in the brightness of about one ...

Space & Earth / Astronomy

created Dec 07, 2009 | popularity 4.4 / 5 (14) | comments 7

Hubble telescope to get last tuneup during International Year of Astronomy

From troubled beginnings nearly 18 years ago, the Hubble Space Telescope has revolutionized astronomy and its stunning images have stirred the imaginations of people around the globe.

Space & Earth / Astronomy

created Dec 31, 2008 | popularity 4.4 / 5 (11) | comments 1