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  2. Heliocentrism - Wikipedia

    en.wikipedia.org/wiki/Heliocentrism

    Heliocentrism [a] (also known as the heliocentric model) is a superseded astronomical model in which the Earth and planets revolve around the Sun at the centre of the universe. Historically, heliocentrism was opposed to geocentrism , which placed the Earth at the center.

  3. Copernican heliocentrism - Wikipedia

    en.wikipedia.org/wiki/Copernican_heliocentrism

    Philolaus (4th century BCE) was one of the first to hypothesize movement of the Earth, probably inspired by Pythagoras' theories about a spherical, moving globe. In the 3rd century BCE, Aristarchus of Samos proposed what was, so far as is known, the first serious model of a heliocentric Solar System, having developed some of Heraclides Ponticus' theories (speaking of a "revolution of the Earth ...

  4. Copernican Revolution - Wikipedia

    en.wikipedia.org/wiki/Copernican_Revolution

    Nicolaus Copernicus's heliocentric model. Copernicus studied at Bologna University during 1496–1501, where he became the assistant of Domenico Maria Novara da Ferrara.He is known to have studied the Epitome in Almagestum Ptolemei by Peuerbach and Regiomontanus (printed in Venice in 1496) and to have performed observations of lunar motions on 9 March 1497.

  5. History of the center of the Universe - Wikipedia

    en.wikipedia.org/wiki/History_of_the_center_of...

    The heliocentric model from Nicolaus Copernicus' De revolutionibus orbium coelestium. Heliocentrism, or heliocentricism, [9] [note 1] is the astronomical model in which the Earth and planets revolve around a relatively stationary Sun at the center of the Solar System.

  6. Copernican principle - Wikipedia

    en.wikipedia.org/wiki/Copernican_principle

    The standard model of cosmology, the Lambda-CDM model, assumes the Copernican principle and the more general cosmological principle. Some cosmologists and theoretical physicists have created models without the cosmological or Copernican principles to constrain the values of observational results, to address specific known issues in the Lambda ...

  7. De revolutionibus orbium coelestium - Wikipedia

    en.wikipedia.org/wiki/De_revolutionibus_orbium...

    De revolutionibus orbium coelestium (English translation: On the Revolutions of the Heavenly Spheres) is the seminal work on the heliocentric theory of the astronomer Nicolaus Copernicus (1473–1543) of the Polish Renaissance.

  8. Solar coordinate systems - Wikipedia

    en.wikipedia.org/wiki/Solar_coordinate_systems

    Heliocentric coordinate systems measure spatial positions relative to an origin at the Sun's center. There are four systems in use: the heliocentric inertial (HCI) system, the heliocentric Aries ecliptic (HAE) system, the heliocentric Earth ecliptic (HEE) system, and the heliocentric Earth equatorial (HEEQ) system.

  9. Celestial spheres - Wikipedia

    en.wikipedia.org/wiki/Celestial_spheres

    Thomas Digges' 1576 Copernican heliocentric model of the celestial orbs. Early in the sixteenth century Nicolaus Copernicus drastically reformed the model of astronomy by displacing the Earth from its central place in favour of the Sun, yet he called his great work De revolutionibus orbium coelestium (On the Revolutions of the Celestial Spheres).