heliocentric orbits

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• Heliocentric orbit — A heliocentric orbit (also called circumsolar orbit) is an orbit around the Sun. All planets, comets, and asteroids in our Solar System are in such orbits, as are many artificial probes and pieces of debris. The moons of planets in the Solar… …   Wikipedia

• Secular variations of the planetary orbits — The Secular Variations of the Planetary Orbits (French: Variations Séculaires des Orbites Planétaires, abbreviated as VSOP) is a semi analytic theory describing the long term changes (secular variation) in the orbits of the planets Mercury to… …   Wikipedia

• List of orbits — The following is a list of types of orbits:Centric classifications* Galactocentric orbit: An orbit about the center of a galaxy. Earth s sun follows this type of orbit about the galactic center of the Milky Way. * Heliocentric orbit: An orbit… …   Wikipedia

• Heliocentrism — Heliocentric redirects here. For the albums, see Heliocentric (Paul Weller album) and Heliocentric (The Ocean Collective album). Heliocentric Universe …   Wikipedia

• Universe — • Presents a history of astronomy Catholic Encyclopedia. Kevin Knight. 2006. Universe     Systems of the Universe     † …   Catholic encyclopedia

• Mars probe program — This article is for the Russian (Soviet) series of space probes; for the moon designated as Mars II, see Deimos (moon); for all missions to Mars, see Exploration of Mars. The Mars program was a series of Mars unmanned landers and orbiters… …   Wikipedia

• Mars program — This article is about the Soviet program. For other Mars exploration programs, see Exploration of Mars. The Mars program was a series of unmanned spacecraft launched by the Soviet Union between 1960 and 1973. The spacecraft were intended to… …   Wikipedia

• Orbital node — The ascending node. An orbital node is one of the two points where an orbit crosses a plane of reference to which it is inclined.[1] An orbit which is contained in the plane of reference (called non inclined) has no nodes …   Wikipedia

• Resonant trans-Neptunian object — In astronomy, a resonant trans Neptunian object is a trans Neptunian object (TNO) in mean motion orbital resonance with Neptune. The orbital periods of the resonant objects are in a simple integer relations with the period of Neptune e.g. 1:2,… …   Wikipedia

• (90377) Sedna — Pour les articles homonymes, voir Sedna. (90377) Sedna Caractéristiques orbitales Époque 22 octobre 2004 (JJ 2453300,5) Demi grand axe 75,659770×109 km (505,754 ua …   Wikipédia en Français

• Астрономия Древней Греции — Астрономия Древней Греции  астрономические познания и взгляды тех людей, которые писали на древнегреческом языке, независимо от географического региона: сама Эллада, эллинизированные монархии Востока, Рим или ранняя Византия. Охватывает… …   Википедия