3. what were copernicuss contributions to astronomy?\n4. summarize keplers first law of planetary…

3. what were copernicuss contributions to astronomy?\n4. summarize keplers first law of planetary motion.\n5. calculate the eccentricity of this ellipse using the equation d/l = e; where d = 24 and l = 48.

3. what were copernicuss contributions to astronomy?\n4. summarize keplers first law of planetary motion.\n5. calculate the eccentricity of this ellipse using the equation d/l = e; where d = 24 and l = 48.

Answer

Explanation:

Step1: Recall Copernicus' work

He proposed the heliocentric model.

Step2: Recall Kepler's first law

Planets move in elliptical orbits with the Sun at one focus.

Step3: Calculate ellipse eccentricity

Substitute values into formula $e=\frac{d}{l}$. Given $d = 24$ and $l=48$, then $e=\frac{24}{48}$.

Answer:

  1. He proposed the heliocentric model, which placed the Sun at the center of the solar - system instead of the Earth.
  2. Planets move in elliptical orbits around the Sun, with the Sun at one of the two foci of the ellipse.
  3. $\frac{1}{2}$