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Planet KELT-4Ab with triple-star system found

Planet KELT-4Ab with triple-star system found
05 April 2016 Current Affairs: A research team of the Harvard-Smithsonian Center for Astrophysics published a paper in The Astronomical Journalon 4 February 2016 on their findings of a stable orbit planet with a triple-star system.The team described how they came to see that a binary system once thought to be a single star, was actually a pair of stars orbiting one another, and how that led to the revelation of the triple-star system.Planet KELT-4Ab is also brighter than the other stars that serve as suns for their planets which made it easier to study both the star and the planet.The objects under study in the new system are KELT-4Ab, a gas giant planet, similar in size to Jupiter—it takes approximately three days to make its way around the star KELT-A which serves as its sun.The other two stars are KELT-B and C which are much farther away and orbit one another over the course of approximately 30 years.It takes the pair approximately four thousand years to orbit KELT-A. The researchers suggest that the view from KELT-4Ab would likely be one where its sun, KELT-A, would appear roughly forty times as big as our sun does to us due to its close proximity. The two other orbiting stars would appear much dimmer due to their great distance, shining no brighter than our moon.Space scientists have known of the existence of the KELT system for several years, but it was thought that the binary stars were actually just one star.The researchers on this new effort were able to see that they were actually a binary system courtesy of two robotically controlled telescopes on two different continents. one is in Arizona and the other is  in South Africa.Together they are known as the Kilodegree Extremely Little Telescope (KELT) which is of course how the KELT system got its name.The triple-star system offers a unique opportunity for scientists working to try to understand how it is that gas giants, such as KELT-4Ab, manage to orbit so close to their star.Theory suggests that they should be more distant, as is the case with Jupiter. One possibility, at least for this new discovery, is that it might have something to do with the nearby binary system.


December 2016 Current affairs
9 DEC
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8 DEC
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7 DEC
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6 DEC
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5 DEC
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November 2016 Current affairs
30 NOV
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29 NOV
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28 NOV
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26 NOV
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25 NOV
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October 2016 Current affairs
31 OCT
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27 OCT
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26 OCT
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25 OCT
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24 OCT
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September 2016 Current affairs
30 SEP
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29 SEP
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August 2016 Current affairs
31 AUG
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