• Key Information

  • Mimas

  • Type
    Moon (of Saturn)
  • Diameter
    246.3 miles
  • Distance from Saturn
    115,288 miles
  • Orbit Time
    1.370 days
  • Length of Day
    0.942 days
  • Time around Sun
    29.4571 Earth years
  • Atmosphere
    None
  • Temperature
    -344 °F
  • Date of Discovery
    September 17, 1789, William Herschel
  • Learning Point
  • Mimas is the smallest object we know of that is round because of its own gravity, and it seems to have been the survivor of a massive impact that create a huge crater on one side of the moon.
  • Project
  • Draw Mimas with the Herschel Crater.
  • Location
  • Located in
    Solar System, orbiting the Sun
  • Fun Facts
  • Mimas is the smallest astronomical body known to be roughly rounded in shape due to its own gravity.
  • The moon creates a gap in Saturn's rings, called the Cassini Division, because of how it orbits the planet.
  • Mimas is famous for looking like the "Death Star" because of the giant crater on one side. The crater is called Herschel, named after William Herschel.
  • The total surface area of Mimas could fit into Spain or California.