(PhysOrg.com) -- Betelgeuse, a red supergiant in the constellation of Orion, is one of the brightest stars in the night sky. It is also one of the biggest, being almost the size of the orbit of Jupiter — about four and ...
Astronomy
Jun 23, 2011
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(PhysOrg.com) -- Just as some drivers obey the speed limit while others treat every road as if it were the Autobahn, some stars move through space faster than others. NASA's Wide-field Infrared Survey Explorer, or WISE, captured ...
Astronomy
Mar 11, 2011
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How is it possible that HD 62623, a hot super-giant star on the verge of death, is surrounded by a disc, generally only associated with infant stars? Using long-baseline stellar interferometry at ESO's VLT interferometer, ...
Astronomy
Jan 26, 2011
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Since its discovery 45 years ago, Cygnus X-1 has been one of the most intensively studied cosmic X-ray sources. About a decade after its discovery, Cygnus X-1 secured a place in the history of astronomy when a combination ...
Astronomy
Aug 28, 2009
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Betelgeuse is the well known red giant star in the corner of Orion the hunter. The name translated in some languages means "armpit of the giant," which, I think of all the star names, is simply the best! Betelgeuse has been ...
Astronomy
Dec 4, 2023
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What's going on with Betelgeuse? In recent years it's generated a lot of headlines as its luminosity has shifted dramatically several times. The red supergiant brightened by almost 50% earlier this year, triggering speculation ...
Astronomy
Nov 1, 2023
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Whenever something happens with Betelgeuse, speculations about it exploding as a supernova proliferate. It would be cool if it did. We're far enough away to suffer no consequences, so it's fun to imagine the sky lighting ...
Astronomy
Jun 6, 2023
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Meet R136a1, the most massive star known. Located in the Large Magellanic Cloud, it's a hulking behemoth weighing somewhere between 150 and 200 times the mass of the sun. Understanding the upper limit of stars helps astronomers ...
Astronomy
Aug 18, 2022
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Making a 3D map of our galaxy would be easier if some stars behaved long enough to for us to calculate the distances to them. However, red supergiants are the frisky kids on the block when it comes to pinning down their exact ...
Astronomy
Jul 1, 2022
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Betelgeuse keeps getting dimmer, and everyone is wondering what exactly that means. The star will go supernova at the end of its life, but that's not projected to happen for tens of thousands of years or so. So what's causing ...
Astronomy
Jan 23, 2020
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