Orbit/ˈɔːrbɪt/ Definition 1 of 4Pro Tip 1/3Space Movement Orbit in space context refers to a regular, repeating path that an object takes. Comets have long elliptical orbits. Pro Tip 2/3Central Body The object being orbited is usually larger, acting as a central point. The satellite remains in orbit around the much larger Earth. Pro Tip 3/3Not Always Round Orbits can be circular or elliptical, not all orbits are perfect circles. Mars has an elliptical orbit around the sun.