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162 BCE
Hipparchus
Hipparchus was a astronomer from a very long time ago he was born in 190bc. He was known for making accurate models of the sun and moon. Along with his model he also created trigonometry a nightmare for all students. -
1515
Copernicus
Copernicus is our founding astronomer who made the first heliocentric model of the solar system. -
1572
Tycho Brahe
Tycho made observations of the stars and planets. His study of a new star that appeared in 1572 showed that it was farther away than the Moon. -
Galileo Galilei
First to resolve the Milky Way into individual stars. Galilei was also the first to observe, and make sketches of the phases of Venus he also discovered sunspots, and four other moons including Jupiter -
Johannes Kelper
Johannes Kelper created the 3 laws of planetary motion between 1609 and 1619 which are still used today. -
Christian Huygens
Christian Huygens was the first man to have a theory about the nature of light. And in 1655 he discovered that Saturn has a flat ring around it. -
Isaac Newton
Isaac Newton is a very famous astronomer who is known in the science feild very well. He created Newtons laws of motion which are A body remains at rest, or in motion at a constant speed in a straight line, unless acted upon by a force. When a body is acted upon by a force, the time rate of change of its momentum equals the force.
If two bodies exert forces on each other, these forces have the same magnitude but opposite directions( thats from wiki) -
William Herschel
William Herschel is known for making great quality telescopes. He also discovered Uranus in 1781. He also tried to map the shape of the milky-way but failed many times. -
Pierre-Simon Laplace
First astronomer to come up with the theory that the solar system was formed from a large flattened disc and was proven to be correct recentley -
Edwin Hubble
Edwin Hubble was an astronomer who was born in 1889. His contribution to astronomy was him proving that the universe is expanding. He also disovered that there are other galaxies outside of our sun. Which he then made classification groups for.