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Hot Super-Jupiter likely a brown dwarf companion star

Posted: 23.11.2012, 08:18
by kristoffer
Hot Super-Jupiter found around a star named "Kappa Andromedae" around 100 light-years away. This planet is likely a brown dwarf star, which makes it a companion star because of it's extreme mass. It is 12.8 times more massive than Jupiter, but it is slightly bigger than Jupiter. It is the large mass of it, which makes it that it might be a brown dwarf star.

This is also something our planet Jupiter could be like. Jupiter is called a "failed star".
It was not enough massive to produce deuterium fusion

Image
The "super-Jupiter" Kappa Andromedae b, shown here in an artist's rendering, circles its star at nearly twice the distance that Neptune orbits the sun. With a mass about 13 times Jupiter's, the object glows with a reddish color. Credit: NASA's Goddard Space Flight Center/S. Wiessinger
Astronomers using infrared data from the Subaru Telescope in Hawaii have discovered a "super-Jupiter" around the bright star Kappa Andromedae, which now holds the record for the most massive star known to host a directly imaged planet or lightweight brown dwarf companion.

http://www.nasa.gov/topics/universe/fea ... piter.html

Re: Hot Super-Jupiter likely a brown dwarf companion star

Posted: 24.11.2012, 19:37
by Hungry4info