Phobos Mars I Phobos ( FOH bus ) is the larger and innermost of Mars' two moons. Phobos is closer to its primary than any other moon in the solar system, less than 6000 km above the surface of Mars. It is also one of the smallest moons in the solar system. orbit: 9378 km from the center of Mars diameter: 22.2 km (27 x 21.6 x 18.8) mass: 1.08e16 kg In Greek mythology, Phobos is one of the sons of ...

Deimos Mars II Deimos ( DEE mos ) is the smaller and outermost of Mars' two moons. It is the smallest known moon in the solar system. orbit: 23, 459 km from Mars diameter: 12.6 km (15 x 12.2 x 11) mass: 1.8e15 kg In Greek mythology, Deimos is one of the sons of Ares (Mars) and Aphrodite (Venus); deimos is Greek for panic . Discovered 1877 August 10 by Hall, photographed by Viking 1 in 1977.

Deimos Video: Deimos Rotation Movie - High Quality ...

Phobos Video: Highly Detailed Animation of Phobos ...

The Moons of Mars Mars has two small moons that are illustrated in the following figures, Phobos and Deimos. Phobos (Ref) Deimos (Ref) These are examples of what are called minor satellites: small chunks of rock in orbit around planets as compared with large satellites like the Earth's Moon. As the adjacent images show, they are very irregular in shape. Phobos is 27 km long in its longest ...

Mars' Moons - Phobos & Deimos, from ORRERY: the Solar System in action.

Phobos and Deimos Mars is orbited by two satellites, both believed to be captured asteroids. This is because of both Mars' proximity to the Asteroid Belt and their small sizes and irregular shapes. The table below provides some information on their dimensions and orbital characteristics (Illingworth, 1994). Satellite Year of Discovery Diameter (Km) Orbital Radius (Km) Eccentricity Orbital Period ...