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476 AD
Aryabhata was a mathemetition and astronemer.
He practiced on planetry motions and also the terrestrial planets -
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He was a Jewish Astronomer that worked mostly on the Eclipses
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He made a complex diamgram of mercury
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Guo ShouGing was a mathemetician and an astronomer that discovered the way to find north by the help of stars
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Nicholas the astronomer made a model of a Sun which then he suggested that the Sun was the middle of the solar system
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Galileo Galilei discover and proved that the Earth was no in the middle and was like all the other planets orbiting the Sun.
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858AD
He composed a work on astronomy, with tables, containing his own observations of the sun and moon and a more accurate description. -
He also made the earliest recorded observation of the Andromeda Galaxy in 986 AD. These were the first galaxies other than the Milky Way to be observed from Earth.
He also was the one of the 9 famous Muslim astronomer.