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 晴天 2010年08月05日 星期四 | |
 A solar system with | |
A solar system with
at least five planets is the largest exoplanetary nike air max 2010 system ever found.The five detected planets are big, being the size of Neptune. Two other planets may also be present.A total of 402 stars with planets have been logged since the first was discount handbags detected in 1995.The system has at least five planets -- one of which is nearly the mass of Earth.
European astronomers on Tuesday said they had found mens nike shox a distant star orbited by at least five planets in the biggest discovery of so-called exoplanets since the first was logged 15 years ago.The star is similar to our sun and its planetary lineup sheepskin shoes manufacturers has an intriguing parallel with own solar system, although no clue has so far been found to suggest it could be a home from home, they said.
The star they studied, HD 10180, is located 127 nike tn chaussures light-years away in the southern constellation of Hydrus, the male water snake, the European Southern Observatory (ESO) said in a press release.The planets were detected over six years new era hats using the world's most powerful spectograph, an instrument to capture and analyze light signatures, at ESO's telescope at La Silla, Chile.
The method consists of observing a star and seeing chaussure puma how the light that reaches Earth "wobbles" as a result of the gravitational pull of a passing planet.The tiny fluctuation in light can then be used as a telltale to calculate the mass of the gucci sac à main transiting planet.The five detected planets are big, being the size of Neptune, although they orbit at a far closer range than our own gas giant, with a "year" ranging from between six and 600 days.
The astronomers also found tantalizing evidence ugg boots that two other candidate planets are out there.One would be a very large planet, the size of our Saturn, orbiting in 2,200 days.The other would be 1.4 times the mass of Earth, making it the smallest plastic mould exoplanet yet to be discovered. It orbits HD 10180 at a scorchingly close range, taking a mere 1.18 Earth days to zip around the star.
If confirmed, that would bring the distant star wholesale lacoste system to seven planets, compared with eight in our own solar system.A total of 402 stars with planets have been logged since the first was detected in 1995, according to NASA's Jet classic ugg Propulsion Laboratory (JPL). The tally of exoplanets stands at 472.None, though, is even remotely similar to Earth, which is rocky and inhabits the famous "Goldilocks zone" where the temperature is just right to enable water, the stuff of life, to exist in liquid form.
ESO astronomer Christophe Lovis said knowledge was gucci jeans progressing fast."We are now entering a new era in exoplanet research -- the study of complex planetary systems and not just of individual planets," Lovis said. "Studies of red monkey jean planetary motions in the new system reveal complex gravitational interactions between the planets and give us insights into the long-term evolution of the system."
Paul McCartney takes a break from the school run crown holder jeans to talk about drugs, love songs and what 'Nowhere Boy' got wrongIn a glass case on the desk in Sir Paul McCartney’s office sits a pair of spectacles that used to cosmetic brush belong to the surrealist painter René Magritte.Sir Paul was given them by his late wife, Linda, who’d bought them at a sale staged by Magritte’s widow, Georgette. And they're under glass because, he tells me: ‘I managed to break them once, just by playing with them. And I thought, “I shouldn't be breaking Magritte’s spectacles!”’
Indeed, the 67 year-old adores Magritte (as does nike air max 2010 Yoko Ono, who has a remarkable collection of the Belgian-born artist’s work) and the thought of it brings back a Magritte-related memory from the Fab Four’s psychedelic heyday:‘Yeah, that was knitted fabric the coolest thing ever,’ McCartney says, the Scouse still evident in his voice, a voice that mixes joviality with steeliness (a reminder that the cheeky chappie of his ‘thumbs up’ photographs is also the tough cookie who dared to sue his three fellow Beatles). ‘Yeah,’ he continues, ‘I’d say that was the best conceptual moment of the Sixties
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