heliocentric

/,hi:liou'sentrik/

Thân thiện

The teacher draws a heliocentric diagram on the classroom board.

Definition

Adjective 1. Having the sun as the center: Describing a model or system in which the sun is positioned at the center, with the Earth and other planets revolving around it. Example: The heliocentric model of the solar system, proposed by Copernicus, replaced the older geocentric view.

Usage

The adjective "heliocentric" is primarily used in astronomy and the history of science to describe theories, models, or coordinate systems. It contrasts with "geocentric" (Earth-centered).

Examples: - Galileo's observations provided strong evidence for the heliocentric theory. - In a heliocentric orbit, a spacecraft travels around the sun.

Advanced Usage

• Heliocentric distance: The distance of a planet or object from the sun.
• Heliocentric longitude/latitude: A coordinate system using the sun as its center point.

Variants and Related Words

• Heliocentrism (noun): The astronomical model or doctrine that places the sun at the center of the solar system.
• Heliocentricity (noun): The quality or state of being heliocentric. (Less common than "heliocentrism").

Synonyms

• Sun-centered
• Copernican (when referring specifically to the model proposed by Nicolaus Copernicus)

Antonyms

• Geocentric: Having the Earth as the center.

Học thuật

Adjective

1. having the sun as the center