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extrasolar planet

Citizen Planet Hunters Find a Planet in a Four-Star System

October 15, 2012

Want to stay on top of all the space news? Follow @universetoday on Twitter A family portrait of the PH1 planetary system: The newly discovered planet 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 [...]

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What is an Exoplanet

September 29, 2010

What is an exoplanet? An exoplanet is basically any planet that is found outside the solar system. For the longest time astronomers thought that planets only occurred in our solar system and even when planets were discovered orbiting other stars that there were not any that had the same mass or orbit as Earths. However [...]

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Gliese 581e

February 22, 2010

Gliese 581 e is one of four known planets orbiting Gliese 581 and is the farthest from the star’s habitable zone. Gliese 581, a relatively obscure red dwarf star in constellation Libra, got a taste of the limelight back in April 2007 when one of its planets, Gliese 581 c, was discovered to be the [...]

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Gliese 581c

February 22, 2010

Gliece 581c is a planet orbiting Gliece 581, a red dwarf star in the constellation Libra. Gliese 581c first gained prominence when it was found to be within its star’s habitable zone – the first low mass extrasolar (outside our Solar System) planet found in such a region. A star’s habitable zone, as the name [...]

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Exoplanet

October 13, 2009

An exoplanet – or extrasolar planet – is a planet which orbits a star other than our own Sun. After a bit of a false start – lasting many decades! – when a small number of detections of planets around other stars were reported but not confirmed, the first reliable, independently confirmed exoplanet was discovered [...]

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