Without the picture you mentioned, I can't identify the specific model or the corresponding astronomer. However, I can provide a brief overview of each astronomer's model:
- Kepler: Known for his laws of planetary motion, which describe how planets move in elliptical orbits around the sun.
- Copernicus: Proposed the heliocentric model, which places the Sun at the center of the universe, with the Earth and other planets orbiting around it.
- Ptolemy: Developed the geocentric model, which posits that the Earth is at the center of the universe and everything else, including the Sun and planets, revolves around it.
- Newton: Known for his laws of motion and universal gravitation, which explain the forces that govern the motions of celestial bodies but did not develop a specific model of the solar system like the others.
If you can describe the model or elements in the picture, I may be able to help you identify it more accurately.