Earth Versus Proxima Centauri b Rotation Rates

  • Released Thursday, January 23, 2020
  • Updated Wednesday, June 17, 2020 at 4:18PM
  • ID: 4778

Proxima Centauri b is the closest exoplanet to Earth. It is only four light years away. However, since Proxima Centauri b is much closer to its star than Earth, there is a high probability that it is tidally locked, much like our Moon, where one side always faces the Earth.

Proxima B is likely to be tidally locked, and therefore does not have a day/night cycle like earth. Instead one side of the planet is always in daylight and the other side is always in darkness.


Please give credit for this item to:
NASA's Scientific Visualization Studio


This visualization is based on the following papers:

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