Fast Facts: Mars' moon, Deimos

Fast Facts: Mars' moon, Deimos
Age 4.5 billion years, about the same age as Mars
Location Solar system, in orbit around Mars
Avg. distance from Mars 23,460 km (14,600 mi)
Diameter The non-spherical moon has the dimensions of 15 X 12.2 X 10.4 km (9.3 x 7.58 x 6.46 mi)
Mass 1.8 x 1015 kg
Orbital period around Mars About 30.4 hours
Distinguishing features Deimos is a nonspherical, potato-shaped moon with craters, but it has a noticeably smoother appearance than Phobos, the other Mars moon. Scientists debate whether the moons of Mars formed with the planet or are captured asteroids.
Deimos
Mars' moon, Deimos

Fast Facts: Mars' moon, Deimos