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apsis

Apsides are the apexes of the elliptical orbit of satellites. The closest point to the earth is called perigee and the farthest point to the earth is called apogee. If one connects the periapsis with the apoapsis by the center of the earth, then one speaks of the apsidal line.

Apsides, the vertices of satellite orbits

Apsides, the vertices of satellite orbits

The elliptical satellite orbits are clearly marked by the perigee and apogee.

Informations:
Englisch: apsis
Updated at: 31.05.2009
#Words: 68
Links: orbit, line, satellite,
Translations: DE
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