Several stars listed in this 2014 study Close Encounters of the Stellar kind that may come within one light year (0.3 parsecs) in the next million years. Including Gliese 710 (Hip 89825) and HIP 85605
There HIP 85605 seems the earliest and closest also, passing within 0.1 pc, or about a third of a light year, a little over 300,000 years from now. Though all the distributions are quite wide so it could pass by closer or further away and soon or later than that, and it is easily possible that some of the other stars might have closer encounters based on the information so far.
See page 8 of the paper Close Encounters of the Stellar kind for the graphs (at the top of the page).
Here is a graph of the stars, includes both past and future, with error bars
The error bars show the 5% and 95% confidence levels.
See Close encounters - FAQ
There HIP 85605 seems the earliest and closest also, passing within 0.1 pc, or about a third of a light year, a little over 300,000 years from now. Though all the distributions are quite wide so it could pass by closer or further away and soon or later than that, and it is easily possible that some of the other stars might have closer encounters based on the information so far.
See page 8 of the paper Close Encounters of the Stellar kind for the graphs (at the top of the page).
Here is a graph of the stars, includes both past and future, with error bars
See Close encounters - FAQ
About the Author
Robert Walker
Writer of articles on Mars and Space issues - Software Developer of Tune Smithy, Bounce Metronome etc.Studied at Wolfson College, Oxford
Lives in Isle of Mull
4.8m answer views110.4k this month
Top Writer2017, 2016, and 2015
Published WriterHuffPost, Slate, and 4 moreHuffPost, Slate, Forbes, Newsweek, Business Insider, and Science 2.0