in addition to proposing that planetary orbits are elliptical, what other modification did kepler make to…

in addition to proposing that planetary orbits are elliptical, what other modification did kepler make to copernicuss model? planets closer to the sun move faster. planets spin in an epicycle while orbiting earth. venus has phases due to its orbiting of the sun. earths rotation causes the rising and setting of the sun.

in addition to proposing that planetary orbits are elliptical, what other modification did kepler make to copernicuss model? planets closer to the sun move faster. planets spin in an epicycle while orbiting earth. venus has phases due to its orbiting of the sun. earths rotation causes the rising and setting of the sun.

Answer

Brief Explanation:

Kepler's second - law (law of equal areas) states that a line segment joining a planet and the Sun sweeps out equal areas during equal intervals of time. This implies that planets closer to the Sun move faster. Copernicus proposed a heliocentric model but did not have this speed - distance relationship. The other options are either incorrect (planets spin in an epicycle while orbiting Earth is part of the Ptolemaic geocentric model), or not a modification by Kepler (Venus has phases due to its orbiting the Sun was known before Kepler and Earth's rotation causing the rising and setting of the Sun was also known and not a Keplerian modification to Copernicus).

Answer:

Planets closer to the Sun move faster.