Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Apsis> ?p ?o }
- Apsis abstract "The apsis (Greek ἁψίς), plural apsides (/ˈæpsɨdiːz/; Greek: ἁψίδες) is an extreme point in an object's orbit. For elliptic orbits about a larger body, there are two apsides, named with the prefixes peri- (from περί (peri), meaning "near") and ap-, or apo-, (from ἀπ(ό) (ap(ó)), meaning "away from") added to a description of the thing being orbited. For a body orbiting the Sun the point of least distance is the perihelion (/ˌpɛrɨˈhiːliən/) and the point of greatest distance is the aphelion (/əˈfiːlɪən/); The terms become periastron and apastron when discussing orbits around other stars. For any satellite of Earth including the Moon the point of least distance is the perigee (/ˈpɛrɨdʒiː/) and greatest distance the apogee. For any orbits around a "center" of mass, there are the terms pericenter and apocenter. Periapsis and apoapsis (or apapsis) are equivalent alternatives.A straight line connecting the pericenter and apocenter is the line of apsides. This is the major axis of the ellipse, its greatest diameter. For a two-body system the center of mass of the system lies on this line at one of the two foci of the ellipse. When one body is sufficiently larger than the other it may be taken to be at this focus. However whether or not this is the case, both bodies are in similar elliptical orbits each having one focus at the system's center of mass, with their respective lines of apsides being of length inversely proportional to their masses. Historically, in geocentric systems, apsides were measured from the center of the Earth. However, in the case of the Moon, the center of mass of the Earth–Moon system or Earth–Moon barycenter, as the common focus of both the Moon's and Earth's orbits about each other, is about 74% of the way from Earth's center to its surface.In orbital mechanics, the apsis technically refers to the distance measured between the centers of mass of the central and orbiting body. However, in the case of spacecraft, the family of terms are commonly used to describe the orbital altitude of the spacecraft from the surface of the central body (assuming a constant, standard reference radius).".
- Apsis thumbnail Apogee_(PSF).png?width=300.
- Apsis wikiPageExternalLink Astro-Lunar-Scenes-Apo-Perigee.htm.
- Apsis wikiPageExternalLink Astro-Solar-Scenes-Aph-Perihelion.htm.
- Apsis wikiPageExternalLink earth-seasons.
- Apsis wikiPageID "88213".
- Apsis wikiPageLength "15178".
- Apsis wikiPageOutDegree "92".
- Apsis wikiPageRevisionID "683879576".
- Apsis wikiPageWikiLink Altitude.
- Apsis wikiPageWikiLink Angular_momentum.
- Apsis wikiPageWikiLink Aphelion.
- Apsis wikiPageWikiLink Apollo_program.
- Apsis wikiPageWikiLink Apsidal_precession.
- Apsis wikiPageWikiLink Ares.
- Apsis wikiPageWikiLink Arithmetic_mean.
- Apsis wikiPageWikiLink Artemis.
- Apsis wikiPageWikiLink Astronomical_object.
- Apsis wikiPageWikiLink Astronomical_unit.
- Apsis wikiPageWikiLink Axial_precession.
- Apsis wikiPageWikiLink Axial_precession_(astronomy).
- Apsis wikiPageWikiLink Barycenter.
- Apsis wikiPageWikiLink Barycentric_coordinates_(astronomy).
- Apsis wikiPageWikiLink Category:Earth.
- Apsis wikiPageWikiLink Category:Orbits.
- Apsis wikiPageWikiLink Celestial_body.
- Apsis wikiPageWikiLink Center_of_mass.
- Apsis wikiPageWikiLink Ceres_(dwarf_planet).
- Apsis wikiPageWikiLink Conic_section.
- Apsis wikiPageWikiLink Coordinated_Universal_Time.
- Apsis wikiPageWikiLink Cronos.
- Apsis wikiPageWikiLink December_Solstice.
- Apsis wikiPageWikiLink December_solstice.
- Apsis wikiPageWikiLink Dwarf_planet.
- Apsis wikiPageWikiLink Earth.
- Apsis wikiPageWikiLink Eccentric_anomaly.
- Apsis wikiPageWikiLink Ecliptic.
- Apsis wikiPageWikiLink Ellipse.
- Apsis wikiPageWikiLink Elliptic_orbit.
- Apsis wikiPageWikiLink Equinox.
- Apsis wikiPageWikiLink Equinoxes.
- Apsis wikiPageWikiLink Eris_(dwarf_planet).
- Apsis wikiPageWikiLink Formula.
- Apsis wikiPageWikiLink Gaia_(mythology).
- Apsis wikiPageWikiLink Geocentric_model.
- Apsis wikiPageWikiLink Geoffrey_A._Landis.
- Apsis wikiPageWikiLink Geometric_mean.
- Apsis wikiPageWikiLink Greek_language.
- Apsis wikiPageWikiLink Hades.
- Apsis wikiPageWikiLink Halleys_Comet.
- Apsis wikiPageWikiLink Haumea.
- Apsis wikiPageWikiLink Haumea_(dwarf_planet).
- Apsis wikiPageWikiLink Helios.
- Apsis wikiPageWikiLink Hermes.
- Apsis wikiPageWikiLink Inner_planets.
- Apsis wikiPageWikiLink June_Solstice.
- Apsis wikiPageWikiLink June_solstice.
- Apsis wikiPageWikiLink Jupiter.
- Apsis wikiPageWikiLink Keplers_laws_of_planetary_motion.
- Apsis wikiPageWikiLink Longitude_of_the_pericenter.
- Apsis wikiPageWikiLink Makemake.
- Apsis wikiPageWikiLink Makemake_(dwarf_planet).
- Apsis wikiPageWikiLink March_equinox.
- Apsis wikiPageWikiLink Mars.
- Apsis wikiPageWikiLink Maxima_and_minima.
- Apsis wikiPageWikiLink Mercury_(planet).
- Apsis wikiPageWikiLink Milankovitch_cycles.
- Apsis wikiPageWikiLink Moon.
- Apsis wikiPageWikiLink Neptune.
- Apsis wikiPageWikiLink Orbit.
- Apsis wikiPageWikiLink Orbital_eccentricity.
- Apsis wikiPageWikiLink Orbital_mechanics.
- Apsis wikiPageWikiLink Outer_planets.
- Apsis wikiPageWikiLink Perifocal_coordinate_system.
- Apsis wikiPageWikiLink Perihelion.
- Apsis wikiPageWikiLink Perihelion_and_aphelion.
- Apsis wikiPageWikiLink Plane_of_the_ecliptic.
- Apsis wikiPageWikiLink Planet.
- Apsis wikiPageWikiLink Pluto.
- Apsis wikiPageWikiLink Poseidon.
- Apsis wikiPageWikiLink Saturn.
- Apsis wikiPageWikiLink Selene.
- Apsis wikiPageWikiLink Semi-major_axis.
- Apsis wikiPageWikiLink Semi-minor_axis.
- Apsis wikiPageWikiLink Similarity_(geometry).
- Apsis wikiPageWikiLink Solar_System.
- Apsis wikiPageWikiLink Solstice.
- Apsis wikiPageWikiLink Spacecraft.
- Apsis wikiPageWikiLink Specific_orbital_energy.
- Apsis wikiPageWikiLink Specific_relative_angular_momentum.
- Apsis wikiPageWikiLink Standard_gravitational_parameter.
- Apsis wikiPageWikiLink Sun.
- Apsis wikiPageWikiLink Uranus.
- Apsis wikiPageWikiLink Venus.
- Apsis wikiPageWikiLink Vernal_equinox.
- Apsis wikiPageWikiLink File:Angular_Parameters_of_Elliptical_Orbit.png.
- Apsis wikiPageWikiLink File:Apogee_(PSF).png.
- Apsis wikiPageWikiLinkText "Aphelion".
- Apsis wikiPageWikiLinkText "Apoapsis".
- Apsis wikiPageWikiLinkText "Apogee and Perigee".