OGLE-TR-122b

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OGLE-TR-122b is the smallest star (not a brown dwarf) in terms of volume yet discovered (2005). It was discovered with the Optical Gravitational Lensing Experiment survey (OGLE). It orbits another star nearer the center of the Milky Way, completing one orbit in 7.3 days.

The Earth-Moon orbit, Saturn, OGLE-TR-122b, Jupiter, and other objects, to scale.
The Earth-Moon orbit, Saturn, OGLE-TR-122b, Jupiter, and other objects, to scale.

It is:

  • 16% larger than Jupiter by volume, making it smaller than some extrasolar planets
  • 50x denser than the Sun
  • 95x more massive than Jupiter

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