- pl.
apsides /ˈæpsɪˌdiːz/ AP-sih-deez) is the ****hest or
nearest point in the
orbit of a
planetary body
about its
primary body. The line of
apsides (also...
- 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...
- 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...
- (gradual rotation) of the line
connecting the
apsides (line of
apsides) of an
astronomical body's orbit. The
apsides are the
orbital points ****hest (apoapsis)...
- from
Ancient Gr**** ἀψίς, apsis, 'arch';
sometimes written apsis; pl.:
apsides) is a
semicircular recess covered with a
hemispherical vault or semi-dome...
- problem; how the Moon
rotates on its
apsides. Even
Newton could account for only half of the
motion of the
apsides. This
issue had
puzzled astronomers...
-
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...
-
calculations of the cir****ference of the Earth, the Earth's
axial tilt, and the
apsides of the Sun and the Moon.
Though al-Farghani's
summary of
Almagest contained...
- fixed. In particular, the
position of the
extreme points (the line of the
apsides:
perigee and apogee),
rotates once (apsidal precession) in
about 3,233 days...
- {r_{\text{max}}+r_{\text{min}}}{2}}.} In
astronomy these extreme points are
called apsides. The semi-minor axis of an
ellipse is the
geometric mean of
these distances:...
