FAMOUS ASTRONOMERS

	Name	Date of birth	Main thinking
Galileo Galilei	Galileo Galilei	Birth: 15th February 1564 Dead: 08th January 1642 (72 years old)	Galileo makes better telescopes. He makes the law of the movement. And he support the revolution of Copernicus
Nicolás Copernicus	Nicolás Copernicus	Birth: 19th February 1473 Dead: 24th May 1543 (70 years old)	Develop the heliocentric theory: he discovered that the Earth evolved around the Sun and not invers, as was believed in his time. Discover that the Earth rotated completely on itself every 24 hours
Charles Messier	Charles Messier Dead	Birth: 26th July 1730 Dead: 12th of  April 1817 (87 years old)	Wen he was looking for the comet Haley, for a error he discovers the crab nebula.
William Herschel	William Herschel	Birth: 15th November 1738  Dead: 25th August 1822 (84 years old)	Mathematicians from the Royal Society concluded that Herschel haddiscovered a new planet, the first not visible to the naked eye and farther from the Sun than Saturn. He discovered around 2,500 nebulas and galaxies.
Giovanni Domenico Cassini	Giovanni Domenico Cassini	Birth: 8 July 1625 Dead: 14 of september of 1712 (87 years old)	Discovered the rotational motion of Jupiter. He calculated the rotation periods of Jupiter, Mars, and Venus. His most important achievement was calculating the distance between the Earth and the Sun.And he calculate the distance of the Earth and Mart.