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It's Real!Based on a University of Berkley press release 14th Nov 1999 By observing the transit of a planet across the face of a distant star, astronomers prove that planets exist outside our solar system.
Last Friday, a team led by Greg Henry (Tenn. State) and Geoff Marcy
(UC Berkeley) announced the discovery of a shadow of a planet crossing
a distant star. Little known HD 209458, a Sun-like star 150 light-years
away, had been suspected of harboring planets from a slight wobble found
in its motion. Henry et al. now find that this wobble exactly corresponds
to a planet crossing the face of the star, creating the slight dimming
effect of a partial eclipse. The astronomers were then able to make
a ground breaking estimate of the mass and radius of the extra-solar
planet, which they find to have about two-thirds the mass of Jupiter
but about 60 percent larger radius. |
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