6th December 2019

librarypoint
15

What was Ptolemy's contribution to astronomy?

Many of today's colleges still aspire to this way of learning. Ptolemy was an astronomer and mathematician. He believed that the Earth was the center of the Universe. The word for earth in Greek is geo, so we call this idea a "geocentric" theory.

Also, what did Copernicus do for astronomy?

Nicolaus Copernicus was a Polish astronomer who put forth the theory that the Sun is at rest near the center of the Universe, and that the Earth, spinning on its axis once daily, revolves annually around the Sun. This is called the heliocentric, or Sun-centered, system.

What did Kepler contribute to astronomy?

Johannes Kepler, (born December 27, 1571, Weil der Stadt, Württemberg [Germany]—died November 15, 1630, Regensburg), German astronomer who discovered three major laws of planetary motion, conventionally designated as follows: (1) the planets move in elliptical orbits with the Sun at one focus; (2) the time necessary to

What was Copernicus best known for?

Heliocentrism
Gresham's law
Copernican principle
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