Astronomy Timeline

Eratosthenes

276

Born 276 BC
Died 194 BC He was known for measuring the diameter of the earth

Aristarchus

310

Died 230 B.C
Born 310 B.C He was the first one with the Idea that the Sun was in the center of the universe. he aslo intended to to measure the relative distance between the earth and the sun and earth anfd the moon.

Anaxagoras

500

Died in 428 B.C He was the first plilisopher to bring philosophy from Ionia to Athens

Geocentric and Heliocentric

Jan 1, 1473

Nicolaus Copernicus

Feb 19, 1473

Died: May 24, 1543
He tried to build a model of how everythings works in spay because he believed that the planets revolved around the sun.

Tycho Brahe

Dec 14, 1546

Died: October 24, 1601 He made a model of the most accurate observation up to that time. His observation included mapping star positions and more than 20 years he made detailed records of his findings.

Galileo Galilei

Feb 15, 1564

Died:
He came up with the law of the Pendulum,
He also discoverd four of Jupiters moon. Gallileo was the first person to invent a telescope..

johannes Kepler

Dec 27, 1572

Died: November 15, 1630 He was the creater of the Laws of planetary Motion.

Sir Issac Newton

Jan 4, 1643

Died: March 31, 1727 He discovered and created all of the Newtons law that makes us understand more about gravity and time that are relevent to space.

Ptolemy

Jan 1, 1985

Born- 85
Died- 165 He came up with the model called Ptolemaic system,

Hipparchus

Mar 2, 2022

Born 190
Died

Aristotle

Mar 2, 2022

Died 322 BC,
Born 384 BC, He was the one that proved thats the earth was round and he aslo believed that it was at the center.