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| -Short Attention Span Theater- |
| Planet With Four Suns Discovered |
| 2012-10-17 |
| [An Nahar] An international team of amateur and professional astronomers on Monday announced the discovery of a planet whose skies are lit up by four suns -- the first reported case of such a phenomenon. The planet, located about 5,000 light years from Earth, has been dubbed PH1 in honor of Planet Hunters, a program led by Yale University in the United States which enlists volunteers to look for signs of new planets. PH1 is orbiting two suns, and in turn is orbited by a second distant pair of stars. Only six planets are known to orbit two stars, researchers say, and none of those are orbited by other distant stars. "Circumbinary planets are the extremes of planet formation," said Yale's Meg Schwamb, lead author of a paper presented Monday at the annual meeting of the Division for Planetary Sciences of the American Astronomical Society in Nevada. "The discovery of these systems is forcing us to go back to the drawing board to understand how such planets can assemble and evolve in these dynamically challenging environments." U.S. citizen scientists and Planet Hunters participants Kian Jek and Robert Gagliano were the first to identify PH1. Their observations were then confirmed by a team of U.S. and British researchers working in Hawaii. PH1 is a gas giant with a radius about 6.2 times that of Earth, making it a bit bigger than Neptune. It orbits a pair of eclipsing stars that are 1.5 and 0.41 times the mass of the Sun roughly every 138 days. The two other stars are orbiting the planetary system at a distance that is roughly 1,000 times the distance between Earth and the Sun. The Planethunters.org website was created in 2010 to encourage amateur astronomers to identify planets outside our solar system, using data from the U.S. space agency NASA's Kepler space telescope. Kepler, launched in March 2009, is NASA's first mission in search of Earth-like planets orbiting stars similar to our Sun. The discovery of PH1 was made available online Monday at the site arxiv.org and has been submitted to the Astrophysical Journal for publication. "It still continues to astonish me how we can detect, let alone glean so much information, about another planet thousands of light-years away just by studying the light from its parent star," Jek said. |
| Posted by:Fred |
| #9 And then Asimov started sharecropping. That was sad. Nowadays there are websites for the fanfics. In the old days kind authors found an editor to put out cheap paperbacks for the best of the over-the-transom stuff to encourage the youngsters. |
| Posted by: trailing wife 2012-10-17 21:19 |
| #8 Both Asimov and Heinlein's last few novels were self-indulgent messes. The short story "Nightfall" is the version I choose to remember. And then Asimov started sharecropping. That was sad. |
| Posted by: Eric Jablow 2012-10-17 20:38 |
| #7 Eric now that I think about it, more a long-short story or novella, the sequel was a full-blown novel and sucked. |
| Posted by: Shipman 2012-10-17 16:19 |
| #6 ...evolve in these dynamically challenging environments. Ripped off from someone's H.R. department? |
| Posted by: Raj 2012-10-17 11:06 |
| #5 "Nightfall" was a book? Oh, in the way that the extended director['s cut of a movie can triple its length. |
| Posted by: Eric Jablow 2012-10-17 06:26 |
| #4 CrazyFool yeah, excellent book, turns out the planet was in the middle of a massive star cluster. |
| Posted by: Shipman 2012-10-17 04:38 |
| #3 Keeping track of Daylight Saving Time must be a bitch. |
| Posted by: SteveS 2012-10-17 01:17 |
| #2 I believe the book Nightfall was about a planet (and civilization) with no less than 6 suns. |
| Posted by: CrazyFool 2012-10-17 00:39 |
| #1 I don't know about you, but I'm waiting for an Earth-like planet with six suns, and at least one moon. |
| Posted by: Eric Jablow 2012-10-17 00:04 |