Distant planet found circling with 4 stars - UPI.com [fornadablog.blogspot.com]
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[fornadablog.blogspot.com], Distant planet found circling with 4 stars - UPI.com
The newly discovered planet PH1 is depicted in this artist's rendition transiting the larger of the two eclipsing stars it orbits. Off in the distance, well beyond the planet orbit, resides a second pair of stars bound to the planetary system. Credit: Haven Giguere/Yale University
Published: Oct. 15, 2012 at 4:54 PM
HONOLULU, Oct. 15 (UPI) -- Two U.S. citizen scientists have discovered a planet in a system with four different suns, the first known of its type, U.S. and British astronomers say.
The distant planet orbits one pair of stars while a second pair of stars orbits around it, they said.
The planet was discovered by two U.S. volunteers using the Planethunters.org website who spotted faint dips in light caused by the planet "transiting," or passing in front of, its parent stars.
U.S. and British astronomers then confirmed the discovery of the planet, thought to be a "gas giant" slightly larger than Neptune and more than six times the size of the Earth, with the Keck telescopes in Hawaii.
Astronomers say they're puzzled by how the planet avoids being pulled apart by the gravitational forces of its four stars.
"All four stars pulling on it creates a very complicated environment," Chris Lintott from the University of Oxford told BBC News. "Yet there it sits in an apparently stable orbit."
"That's really confusing, which is one of the things which makes this discovery so fun. It's absolutely not what we would have expected."
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The dense jungle of the Yucatan in the south east of Mexico is a miracle of nature, a region in which the small amount of rain that falls quickly drains away into the limestone ground. Yet, overgrown by dense vegetation are the remains of an ancient civilization. Sixty five million years ago a catastrophe of global dimensions transformed the appearance of Planet Earth. A meteorite measuring several kilometres crashed just off what is now the Yucatan and created a crater measuring a hundred and eighty kilometres. Today, within the jungle, this same area contains various entrances into an underwater world, the Cenotes Cave System. The name Cenote is derived from the Mayan word, 'TS´ONOT', 'sacred spring'. That is what the Mayan people called the countless small water holes of the region. Experienced cave divers and archaeologists have explored the endless labyrinth and more than five hundred kilometres of the ground water flows of the Yucatan have now been mapped. Bu t this represents only a tiny section of the largest flooded cave system on our planet. The Mayan cities now lie abandoned and most of their myths, long forgotten. But the underworld of the Cenotes has survived and continues to wait for new discoveries to be found from within its tantalising depths. CENOTES Mexico
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