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added by M Jan. 9, 2019, 9:16 p.m.
What is a "blue straggler" in astronomy?
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Blue straggler stars are stars in open or globular clusters that are hotter and bluer than other cluster stars having the same luminosity, they rapidly rotate at a rate of 75 times that of the Sun's rotation. Blue stragglers were first discovered by Allan Sandage in 1953 while performing photometry of the stars in the globular cluster M3.
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Correct this question
wikipedia → Blue straggler
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Very interesting!
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+1 Very interesting!  my.game-my.world
      Acceptable  Black Wilson
+1 Very interesting!  it is not easy
+1 Very interesting!  synapsaa