Phobos

Phobos in its roundest form

Basic Info

Planet

Mars

Size (Diameter)

27 by 22 by 18 km

Surface Gravity

0.0057 m/s2

Day Length

7 hours and 39 minutes

Tidally Locked?

Yes

Who Discovered Phobos?

Asaph Hall

Fun Facts

  • Phobos is named after one of the sons of Ares.
  • In the late 1950s and 60s, there was a theory that Phobos was hollow
  • Eventually, due to tidal deceleration, Phobos will be destroyed

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