Nicolaus was a mathematical astronomer who proposed that the sun was stationary in the center of the universe.
Tycho is most known for the invention of the telescope which was used to find many thins in astronomy.
galileo is know for many things some of them our that he changed the way we think about the laws of motion. Also he is know for finding four massive moons of Jupiter.
Kelper is most know for his three laws of planetary motion which include Planets move in orbits shaped like an ellipse.A line between a planet and the Sun covers equal areas in equal times.
Newton is most known for his three laws of motion. His laws are the basic principles for modern physics
He was the second Astronomer Royal in Great Britain after John Flamsteed and is best known for having computed the orbit of the famous Halley’s Comet. The comet is named after him
Herchel is most know for finding the planet Uranus and its two moons, and formulated a theory of stellar evolution.
Einstein is known for many things but is best known for theory of relativity and the equation E=MC2, which foreshadowed the development of atomic power and the atomic bomb.
Clyde is best know for finid the darwf planet pluto.
Fred is remembered today for his contribution to the theory of stellar nucleosynthesis,