News tagged with brown dwarfs

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The strange case of the missing dwarf

The new SPHERE instrument on ESO's Very Large Telescope has been used to search for a brown dwarf expected to be orbiting the unusual double star V471 Tauri. SPHERE has given astronomers the best look so ...

dateFeb 18, 2015 in Astronomy
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The coolest stars

One way that stars are categorized is by temperature. Since the temperature of a star can determine its visual color, this category scheme is known as spectral type. The main categories of spectral type are ...

dateSep 29, 2014 in Astronomy
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Red skies discovered on extreme brown dwarf

(Phys.org) —A peculiar example of a celestial body, known as a brown dwarf, with unusually red skies has been discovered by a team of astronomers from the University of Hertfordshire's Centre for Astrophysics ...

dateFeb 06, 2014 in Astronomy
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First weather map of brown dwarf

ESO's Very Large Telescope has been used to create the first ever map of the weather on the surface of the nearest brown dwarf to Earth. An international team has made a chart of the dark and light features ...

dateJan 29, 2014 in Astronomy
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Nearby failed stars may harbor planet

(Phys.org) —Astronomers, including Carnegie's Yuri Beletsky, took precise measurements of the closest pair of failed stars to the Sun, which suggest that the system harbors a third, planetary-mass object.The ...

dateDec 16, 2013 in Astronomy
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Drawing the line between stars and brown dwarfs

(Phys.org) —Stars come in a tremendous size range, from many tens of times bigger than the Sun to a tiny fraction of its size. But the answer to just how small an astronomical body can be, and still be ...

dateDec 10, 2013 in Astronomy
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