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The birth os science Astrophysics
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Tyco Brahe carried out very detailed observation of the planet. Kepler deduced his famous planetary laws following his observations.
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The Greek astronomer Aristarchus of Samos suggested that the Earth revolved aroun the Sun.
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Hiparchus classified the stars according to their apparent brightness
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Ptolemy suggested a geocentric astronomic model .
The Sun the moon and the five known planets all revolved around the Earth. -
Copernicus published his heliocentric model , according to which the planets revolved around the Sun
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Galileo used a telescope for the first time. This was the birth of modern astronomy.
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Isaac Newton built the first telescope using mirrors instead of lenses.
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Newton published his book "The principles of natural Philosophy", which explained the laws of the planets
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Edmund Halley explained Newton`s laws and predicted comet (which carry his name)
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F.W. Bessel matured the distance from a star for the first time using geometric methods.
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The work by Adams, Galle and Leverrier lead to the discovery of Neptune
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E.P. Hubble proved that some of he nebulas seen in the sky are in fact independent galaxies
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Tombaugh discovered the planet Pluto
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The discovery of the first extra-solar planets