News tagged with variable stars
Astronomers discovered ancient Egyptian observations of a variable star
The study of the "Demon star", Algol, made by a research group of the University of Helsinki, Finland, has received both scientific and public attention. The period of the brightness variation of this eclipsing binary star ...
Space & Earth / Space Exploration
May 16, 2012 |
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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 ...
Apr 20, 2011 |
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The rose-red glow of star formation
The vivid red cloud in this new image from ESO's Very Large Telescope is a region of glowing hydrogen surrounding the star cluster NGC 371. This stellar nursery lies in our neighboring galaxy, the Small Magellanic ...
Mar 30, 2011 |
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A New class for Tau Scorpii
Many classes of stars are named for an early, distinguished member of a certain type of stars. For example, Cepheid variables take their namesake from the periodic variable Delta Cephei, first recognized by ...
Dec 22, 2010 |
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Possible eruption on brink for symbiotic variable star
November 23rd, astronomers from the Asiago Novae and Symbiotic Stars collaboration announced recent changes in the symbiotic variable star, AX Persei, could indicate the onset of a rare eruption of this system. ...
Nov 26, 2010 |
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Image: Dark reflections in the Southern Cross
NASA's Wide-field Infrared Survey Explorer, or WISE, captured this colorful image of the reflection nebula IRAS 12116-6001. This cloud of interstellar dust cannot be seen directly in visible light, but WISE's ...
Oct 28, 2010 |
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Colony of Young Stars Shines in New Spitzer Image
(PhysOrg.com) -- Astronomers have their eyes on a hot group of young stars, watching their every move like the paparazzi. A new infrared image from NASA's Spitzer Space Telescope shows the bustling star-making ...
Apr 01, 2010 |
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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.
Feb 26, 2010 |
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Symbiotic Stars
(PhysOrg.com) -- Many, perhaps even most stars, are members of binaries -- two stars that orbit each other. Symbiotic stars are a small subset of binaries with an attitude: they display characteristic, dramatic, ...
Feb 22, 2010 |
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Solar Dynamics Observatory: The 'Variable Sun' Mission
For some years now, an unorthodox idea has been gaining favor among astronomers. It contradicts old teachings and unsettles thoughtful observers, especially climatologists.
Space & Earth / Space Exploration
Feb 05, 2010 |
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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 ...
Dec 21, 2009 |
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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 ...
Dec 15, 2009 |
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Scientist to 'refine' size of Universe with Kepler
(PhysOrg.com) -- An astronomer at the University of St Andrews will use a powerful planet-hunting telescope to find out the true size of the Universe.
Apr 13, 2009 |
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