There is lots of information available. But you'll find more under the name 51 Peg or 51 Pegasi.
2007-12-24 07:46:31
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answer #1
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answered by Charlie149 6
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It's a sunlike star and it used to be thought that the planet they found was a slightly hotter version of Earth, though it's now found not to be so. There might be another planet there which is more like ours though.
The planet is called Bellerophon. It is only 3 million km from the star, which is more than ten times closer than Mercury is to the Sun, so it is as hot as fire. It orbits it once every four days. It is larger than Jupiter and has an atmosphere with clouds made of substances which form rocks on Earth. It's between the masses of Saturn and Jupiter.
Because it is so close to the star, it may be that it has fallen in from a much greater distance, and if this happened, it may have disrupted the orbits of other planets, possibly Earth+like ones, that they were destroyed or lost their habitability.
2007-12-24 09:53:50
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answer #2
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answered by grayure 7
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Scientists have found 269 planets orbiting other stars so far.
51 Peg was just the first star they found a planet around (confirmed back in 1995).
Since then, they find at least a couple of new planets every month.
None of the planets found so far are like Earth.
The one that is closest to Earth's mass is PSR B1257+12 C with a mass 3.9 times Earth's. All the other planets found so far are much more massive than the Earth.
2007-12-24 09:03:06
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answer #3
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answered by Anonymous
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The planet is VERY much NOT like Earth.
At almost half the mass of Jupiter it is twenty times closer to the host star than Earth is to the sun. Since the star is 30% more luminous than the sun and the orbit is over twenty times closer, the planet is exposed to close to 1000 times the solar constant on Earth. As a result the temperature of its atmosphere is around 1000 degrees Celsius.
Not a friendly world. But quite typical as it seems. We have found dozens that are like it.
2007-12-24 07:54:33
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answer #4
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answered by Anonymous
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Yes, 51 Pegasi was one of the first stars were exoplanets were found and confirmed.
Although the planets found are not "Earth-like" they were confirmed because the funny way the stars moves, that is, in loops.
This was the fist place were planets around other stars were confirmed to exist a few years ago.
2007-12-24 08:29:41
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answer #5
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answered by Asker 6
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Let me get in the Enterprise I'll check it out for you!
2007-12-24 07:56:26
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answer #6
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answered by Star T 7
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Interesting. Just read it's an old star so I dare say it's gone nova by now.
http://en.wikipedia.org/wiki/51_Pegasi
Shame we can't travel to other planets yet.
2007-12-24 07:47:50
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answer #7
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answered by Gavin T 7
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