A day at the Planet Just 8 Hours

Researchers have measured the speed of rotation of a planet outside the Solar System , Beta Pictoria b . Measurement of movement round the Beta Pictoria b shows , the planet within 63 light years from Earth it only took eight hours to pass the time of day .

Launch the Daily Mail , Friday, May 2, 2014 , a very short time thanks to the speed of rotation of the planet Beta Pictoria b which reaches 100 thousand miles per hour , the fastest lap compared to the other planets that are in the zone of the solar system . For the record , the speed of rotation of Jupiter just only 47 thousand miles per hour , while the Earth is much less 1,700 miles per hour .
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Although Beta planet b Pictoria very young age , 20 million years than the age of Earth at 4.5 billion years , but the size of the planet Beta Pictoria b mentioned 16 times wider than Earth , and three thousand times heavier than the Earth .

"The question of why some planets spin rapidly while other planets rotate more slowly , it is not known . , But the first measurements of the rotation of a planet outside the Solar System shows the same trend , the larger planets rotate faster on other planets . Was happening on planets outside the Solar System , " explains Dr. Remco de Kok , researchers Netherlands Institute for Space Research , Utrecht , The Netherlands .

Researchers were able to measure the speed of rotation of the planet with the help of the Very Large Telescope in Chile . With the spread of the light emitted technique planets , the telescope is able to divide the light and change the frequency of the different wavelengths in the spectrum .

Changes in the frequency of wavelengths allows astronomers to detect the movement and speed of the different planets .

Next, carefully remove the effect brighter parent star , researchers were able to extract the planet's rotation signal .

" We have measured the wavelength of radiation emitted by the planet Beta Pictoria b and we find the different parts of the planet's surface is moving toward or away from us at a different pace , " explains Professor Ignas Snellen of Leiden University .

With the success of the measurement techniques on the planet's speed , sophisticated telescopes in the future lets make a global map . For example , mapping the pattern of clouds and huge storms . Researchers hope the technique could be used on a wider sample of the outer planets of the Solar System . The researchers have published findings in the journal Nature . ( umi )

source:http://www.viva.co.id/