Tuesday, September 16, 2008

First Picture of likely Planet around Sun-Like Star

September 16, 2008 - Astrobiology
Astronomers have unveiled what is likely the first picture of a planet around a normal star similar to the sun.
Three University of Toronto scientists used the Gemini North telescope on Mauna Kea in Hawai'i to take images of the young star 1RXS J160929.1-210524 (which lies about 500 light-years from Earth) and a candidate companion of that star. They also obtained spectra to confirm the nature of the companion, which has a mass about eight (8) times that of Jupiter, and lies roughly 330 times the Earth-sun distance away from its star. (For comparison, the most distant planet in our solar system, Neptune, orbits the sun at only about 30 times the Earth-sun distance.) The parent star is similar in mass to the sun, but is much younger.
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