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Old 04-17-2012, 03:27 PM
 
Location: Texas
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A University of Oklahoma assistant professor and colleagues have identified two white dwarf stars considered the oldest and closest known to man. Astronomers identified these 11- to 12-billion-year-old white dwarf stars only 100 light years away from Earth. These stars are the closest known examples of the oldest stars in the Universe forming soon after the Big Bang, according to the OU researcher.
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Old 04-18-2012, 02:44 AM
 
Location: Sol System
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That's on par with the Jovian type planets discovered recently around 2 red giants. Can't recall specifics , but will return with them shortly. Personally , I think there may be even older objects remaining to be discovered. Too bad this is not widely known. The planets were discovered in 2009 , not recently in terrestrial terms. HD 16175/96167 are G0/G5 subgiants , both of low metallicities. The planets are , respectively , 4.4 J min. mass , and .68 J min. mass. They orbit in 2.71 , and 1.366 year timeframes. This brings the PSR 1215+17 system to mind , in respect to age , provided the post SN capture theory pans out to be true. Then again , they may have formed from detritus left behind after the initial collapse.

Last edited by etacarinae; 04-18-2012 at 02:54 AM..
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Old 04-18-2012, 07:14 AM
 
Location: Texas
5,070 posts, read 9,076,032 times
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I was just interested in the old ones that were so close per the article -- Just a bit surprised.

Of course there were stars that were 520 million light years from the Bang. That must be a record.
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