Aristarchus(310-230BC)
Aristarchus was an ancient Greek astronomer and mathematician and is well known because he presented the first known model that the Earth revolved around the sun,"central fire," placing the sun in the center of the universe. Along with the revolution around the sun, he concluded that the Earth rotates on its axis. He also placed all the planets around the sun in the correct order, including distance. Aristarchus devised a system which got him values of the size and distance of the moon. Later, more modern Greek astronomers refined his methods and got very accurate values.
References:
https://www.britannica.com/biography/Aristarchus-of-Samos
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