Definition

Noun: 1. The astronomical model proposed by Nicolaus Copernicus: A heliocentric model of the universe in which the Earth and other planets revolve around the Sun, which is at or near the center. This system also posits that the Earth rotates on its axis daily.

Usage

• The Copernican system fundamentally challenged the long-accepted Ptolemaic (geocentric) system.
• The acceptance of the Copernican system marked a major revolution in scientific thought.

Examples

• Galileo's observations with the telescope provided strong evidence in support of the Copernican system.
• In the Copernican system, the apparent retrograde motion of planets is explained by the relative motion of Earth and other planets orbiting the Sun.

Advanced Usage

• The Copernican Revolution: This phrase refers to the paradigm shift from an Earth-centered to a Sun-centered universe, initiated by the Copernican system. It symbolizes a fundamental change in worldview.
  • The shift to heliocentrism, known as the Copernican Revolution, reshaped our understanding of our place in the cosmos.

Variants and Related Words

• Heliocentrism (n): The astronomical model where the Sun is at the center. The Copernican system is a specific historical formulation of heliocentrism.
• Copernican (adj): Of or relating to Nicolaus Copernicus or his theories.
  • Copernican theory; a Copernican view of the universe.

Synonyms

• Heliocentric system: A system with the Sun at the center.
• Sun-centered model: A descriptive term for the Copernican system.

Related Concepts

• Ptolemaic system (n): The geocentric (Earth-centered) astronomical model that the Copernican system replaced.
• Kepler's laws of planetary motion (n): The three scientific laws describing planetary motion, which provided a more accurate mathematical foundation for the heliocentric model initiated by the Copernican system.

Noun

1. (astronomy) Copernicus' astronomical model in which the Earth rotates around the sun