Ai
09-15-2006, 03:27 AM
Astronomers find distant, fluffy planet
WASHINGTON - The largest planet ever found orbiting another star is so puffy it would float on water, astronomers said Thursday. The newly discovered planet, dubbed HAT-P-1, is both the largest and least dense of the nearly 200 worlds astronomers have found outside our own solar system.
HAT-P-1 orbits one of a pair of stars in the constellation Lacerta, about 450 light-years from Earth.
"This new planet, if you could imagine putting it in a cosmic water glass, it would float," said Robert Noyes, a research astrophysicist with the Smithsonian Astrophysical Observatory. The planet, a gas giant, is probably a puffed up ball of hydrogen and helium.
HAT-P-1 is an oddball planet, since it orbits its parent star at just one-twentieth of the distance that separates Earth from our own sun. While Earth takes a year to orbit the sun, the newly found planet whips around its star once every 4.5 days.
Astronomers believe HAT-P-1 may belong to an entirely new class of planets, along with a second, smaller distant world that's also puffier than theories would have predicted, Noyes said.
Astronomers used a network of telescopes in Arizona and Hawaii to discover the planet. Its parent star is too faint to see with the naked eye but can be spied with binoculars.
http://news.yahoo.com/s/ap/20060914/ap_on_sc/puffy_planet
What are your thoughts?
Want to see this fluff ball in the ocean..and if we do someday create a ship that can reach this planet...won't we just go through it?
Is there any gravity on this planet? or can it just be considered a bubble from the left over gasses of the star that has been captured in it's orbit
WASHINGTON - The largest planet ever found orbiting another star is so puffy it would float on water, astronomers said Thursday. The newly discovered planet, dubbed HAT-P-1, is both the largest and least dense of the nearly 200 worlds astronomers have found outside our own solar system.
HAT-P-1 orbits one of a pair of stars in the constellation Lacerta, about 450 light-years from Earth.
"This new planet, if you could imagine putting it in a cosmic water glass, it would float," said Robert Noyes, a research astrophysicist with the Smithsonian Astrophysical Observatory. The planet, a gas giant, is probably a puffed up ball of hydrogen and helium.
HAT-P-1 is an oddball planet, since it orbits its parent star at just one-twentieth of the distance that separates Earth from our own sun. While Earth takes a year to orbit the sun, the newly found planet whips around its star once every 4.5 days.
Astronomers believe HAT-P-1 may belong to an entirely new class of planets, along with a second, smaller distant world that's also puffier than theories would have predicted, Noyes said.
Astronomers used a network of telescopes in Arizona and Hawaii to discover the planet. Its parent star is too faint to see with the naked eye but can be spied with binoculars.
http://news.yahoo.com/s/ap/20060914/ap_on_sc/puffy_planet
What are your thoughts?
Want to see this fluff ball in the ocean..and if we do someday create a ship that can reach this planet...won't we just go through it?
Is there any gravity on this planet? or can it just be considered a bubble from the left over gasses of the star that has been captured in it's orbit