Multiple choice general knowledge science & technology

Smallest star in the universe is:

  1. Proxima Centauri

  2. OTS-44

  3. OGLE-TR-122B

  4. MOA-2007-BLG-192L
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

OGLE-TR-122B is the smallest known star in the universe, with a radius only about 16% larger than Jupiter's. It's a red dwarf star that is barely massive enough to sustain nuclear fusion. Proxima Centauri is larger, and OTS-44 and MOA-2007-BLG-192L are brown dwarfs or planetary-mass objects, not true stars.

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