Vast solar system found 127 light years away

Posted on August 27, 2010 by

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The five strongest signals corresponded to planets with Neptune-like masses, between 13 and 25 times that of the Earth.

These planets, with orbit periods ranging from six to 600 days, are separated from their star at 0.06 to 1.4 times the distance between the Earth and sun.

Dr Lovis added: ”We also have good reasons to believe that two other planets are present. One would be a Saturn-like planet (with a minimum mass of 65 Earth masses) orbiting in 2,200 days. The other would be the least massive exoplanet ever discovered, with a mass of about 1.4 times that of the Earth.

”It is very close to its host star, at just 2 per cent of the Earth-sun distance. One ‘year’ on this planet would last only 1.18 Earth days.”

The planet would be rocky, like the Earth, but probably far too hot to sustain life.

With at least five Neptune-sized planets circling inside an orbit equivalent to that of Mars, the HD 10180 system has a more populated inner region than our solar system.

via Vast solar system found 127 light years away – Telegraph.

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Posted in: Astronomy