The point in an orbit closest to the body being orbited. (Related terms include perihelion, perigee, and pericrone, which are periapses in Sun, Earth, and Saturn orbits, respectively.) See also apoapsis.
The point of an orbit nearest to the center of attraction of an orbiting body.
The closest point in an orbit to the primary body. For earth orbits periapsis is known as perigee (see below).
The orbital point nearest the center of attraction.
(astronomy) the point in as orbit closest to the body being orbited
low point of an orbit.
In orbital mechanics the point at which an orbiting object is closest to the object being orbited. This is the general term for the concept behind more specialized terms such as perigee and perihelion.
The point in an orbit when the two objects are closet together. The opposite of apoapsis.
In a satellite orbit, the point that is closest to the gravitational center of the system consisting of the primary body and the satellite.
That point in an orbit which is nearest to the primary.
The point in an orbit closest to a body other than the Sun or the Earth.
The point in the orbit closest to the planet.