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#1 2004-08-31 12:00:57
Re: New Planets!
http://www.foxnews.com/story/0,2933,130726,00.html]NASA announces four new planets in a class all their own.
"Run for it? Running's not a plan! Running's what you do, once a plan fails!" -Earl Bassett
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#2 2004-08-31 12:18:26
- SpaceNut
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- From: New Hampshire
- Registered: 2004-07-22
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Re: New Planets!
Same topic as a few lines down in extasolar planets. The importance is the size which had been leaked a few days ago of only being near neptune or uranus size about 10+ Earths to 15 os so. The main part of the web broadcast dealt with more of the logistics of who found what when with official research papers and referees.
In terms of planetary search life becomes more practical as the systems to which are of simular ratios to ours.
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#3 2004-08-31 12:31:06
Re: New Planets!
They have a mass the same as Neptune, but I saw that one of them is much closer to its star than Neptune is to the Sun- it orbits its star every 10 days. At that range the planet would have a diameter about twice that as the Earth, be much denser than Neptune with a surface gravity betwen 1.5 and 2 G's.
Remember that gravitational force a planet exerts upon an object at the planet's surface is proportional to its mass and to the inverse of its radius squared. So Uranus is 0.91 G’s and Neptune is 1.19 G's.
"Run for it? Running's not a plan! Running's what you do, once a plan fails!" -Earl Bassett
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#4 2004-08-31 13:54:35
Re: New Planets!
"Run for it? Running's not a plan! Running's what you do, once a plan fails!" -Earl Bassett
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