How fast does Phobos orbit Mars?
How fast does Phobos orbit Mars? Deimos means ‘terror’ or ‘panic’ and Phobos means ‘fear’. Phobos has an equatorial orbit, which is almost circular. It orbits once every 7 hours 39 minutes just 5989 km above the surface of Mars. What is the Phobos orbital velocity? Density: 1.872 g/cm. Surface Read more…