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cheapbag214s · Posted: Sat 10:53, 07 Dec 2013 Post subject: unlike comets

Rare asteroid exhibiting comet-like tail seen by Spanish telescope ,[url=http://www.ksacinc.com/cheapgucci/?]gucci outlet online[/url]
MADRID,[url=http://www.chronotime.net/]christian louboutin discount[/url], Feb. 21 () -- Asteroids, unlike comets, are seldom seen sporting a tail as they orbit the sun, but Spanish astronomers say they've observed one of these rare exceptions.Using a telescope in the Canary Islands, they spotted an asteroid dubbed P/2012 F5 that displayed a trail like that of comets.Its emission of dust or gas may have been caused by internal rupture or collision with another asteroid, a release from the Spanish Foundation for Science and Technology reported Wednesday."Our models indicate that [the trail] was caused by an impulsive short-lived event lasting just a few hours around the July 1st, 2011,[url=http://www.ksacinc.com/cheapgucci/?]cheap gucci bags[/url], with an uncertainty of 20 days," Fernando Moreno,[url=http://www.panyam.com/]gucci outlet online[/url], researcher at the Astrophysics Institute of Andalusia said.Telescope images reveal "a fine and elongated dust structure that coincides exactly with the synchrone [timing] of that day,[url=http://www.tymarc.com/]christian louboutin discount[/url]," Moreno said."It could have arisen from collision with another asteroid or rather a rotational rupture" of material gradually breaking free after partial fragmentation of the asteroid, the researchers said.The said they estimate the asteroid has a radius of between 300 and 450 feet and the dust mass emitted is about half a million tons.