Low Earth orbit
Videos
A low Earth orbit is an orbit around Earth with a period of 128 minutes or less and an eccentricity less than 0.25. Most of the artificial objects in outer space are in LEO, peaking in number at an al
A view from the International Space Station, in a low Earth orbit (LEO) at about 400 km (250 mi), with yellow-green airglow visible at Earth's horizon, where roughly at an altitude of 100 km (62 mi) the boundary between Earth and outer space lies and flying speeds reach orbital velocities
Polar orbit
Videos
A polar orbit is one in which a satellite passes above or nearly above both poles of the body being orbited on each revolution. It has an inclination of about 80–90 degrees to the body's equator.
Orbit of the planet (orange orbit) around the brown dwarf binary 2M1510AB (blue orbits).