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He devised a system of longitude and latitude, and created a calendar that included a leap year
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He compiled a star catalog and the earliest surviving table of trigonometric function
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Brahe found irregularities in the moon's orbit, and discovered a star in the Cassiopeia formation. He also invented instruments such as the tyconian quadrant which led to the development of more advanced observation equipment
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He discovered that every planet revolves around the sun, he also discovered that the earth rotates daily on it's axis
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discovered the three major laws of planetary motion
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Sir Isaac Newton invented calculus, and developed the formutation of the three laws of motion.
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Observation of a solar eclipse proved that Einsteins prediction that light is bent in the presence of mass