Four stars light up the planetís skies.

Planet with four suns discovered - Comment on 2012 October 15 (3)

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2012 October 15 (3)

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The planet orbits one pair of stars and is in turn circled by a second pair, meaning four stars light up its skies. Read more:

Here some excerpts of articles I read:

 

Planet with four suns discovered by 'armchair astronomers'

Planet believed to be six times the size of Earth is named PH1 after Planet Hunters website used by two American volunteers

The bright new world, almost 5,000 light years away, is believed to be six times the size of Earth. It orbits one pair of stars and is in turn circled by a second pair, meaning four stars light up its skies.

A handful of planets are already known to orbit pairs of binary stars, but the new find is said to be unique.

The planet was discovered by two American volunteers using the Planet Hunters website run by scientists. It allows visitors to identify dips in the output of stars as a result of their light being blocked by "transits" of orbiting stars.

A team of professional astronomers confirmed the find using the Keck telescopes on Mauna Kea, Hawaii. The planet has been named PH1 after the Planet Hunters website.

Details of the discovery were presented on Monday at the Division for Planetary Sciences meeting in Reno, Nevada.

The two stars at the center of the system are roughly 1.5 and 0.4 times the mass of the sun, and while they both technically orbit their combined center of mass, the larger star is much closer to the center and the smaller star effectively orbits it every 20 days, with PH1 orbiting them every 138 days. The pair of distant stars in the system are roughly 1,000 astronomical units away from the central binary, or 1,000 times the distance between the Earth and the sun.

 

This last information gives of course impetus to the idea of our solar system having two suns. See
2011 Sep 16 Ė Scientists find planet orbiting two suns

What is also interesting is that suns orbit suns. Our sun could therefore also obit a sun.

 

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