pl. apsides /ˈæpsɪˌdiːz/ AP-sih-deez) is the farthest or nearest point in the orbit of a planetary body about its primary body. The line of apsides is...

one revolution with respect to its apsides. The orbit of the Earth is elliptical; the extreme points, called apsides, are the perihelion, where the Earth...

An apse line, or line of apsides, is an imaginary line defined by an orbit's eccentricity vector. It is strictly defined for elliptic, parabolic, and...

apses, apsis, apside, apsides, or apsidal in Wiktionary, the free dictionary. The apse or apsis or apside (plural: apses or apsides) are architectural...

(gradual rotation) of the line connecting the apsides (line of apsides) of an astronomical body's orbit. The apsides are the orbital points farthest (apoapsis)...

from Ancient Greek ἀψίς, apsis, 'arch'; sometimes written apsis; pl.: apsides) is a semicircular recess covered with a hemispherical vault or semi-dome...

Shape Size e  Eccentricity a  Semi-major axis b  Semi-minor axis Q, q  Apsides Orientation i  Inclination Ω  Longitude of the ascending node ω  Argument...

effects related to the relativity of direction. In general relativity, the apsides of any orbit (the point of the orbiting body's closest approach to the...

positions and relationship between the lines of solstices, equinoxes, and apsides of Earth's elliptical orbit. The six Earth images are positions along the...

diagram shows the relation between the line of solstice and the line of apsides of Earth's elliptical orbit. The orbital ellipse (with eccentricity exaggerated...