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planets move
different from stars
Geocentric model - Planets and stars revolve
around Earth on spherical “shells”; Earth is the
center of universe (Ptolemaic system) -
also called sea astrolabe, was an inclinometer used to determine the latitude of a ship at sea by measuring the sun's noon altitude or the meridian altitude of a star of known declination
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Wrote the first star and astronomical objects catalog . First to precession of equinoxes. Calculated distance from moon and earth.
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Ptolemaic model the sun is the center of the universe
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Mathematician and Astronomer made the scientific
Method. -
Known for accurate and comprehensive astronomical and planetary observations.
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Central figure in the transition from natural philosophy to modern science. Known for Kinematics, and fist Telescopes. Also sunspots.Discovered io, Callisto, and Europa
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Was a lens maker from Germany but moved to Netherlands . Believed to be first to apply for a patent for the telescope design
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Tycho Brahe’s assistant Discovered that the orbit
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Italian who discovered the division of rings of saturn. 4 of saturn’s moons, and the rotation periods of Mars and Jupiter.
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Further developed works for Copernicus and Kepler using math. Invented reflecting telescopes in 1668. 3 laws of motion.
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Discovered the planet uranus and its moons. He may have discovered water on mars. In 1800’s He performed an experiment determining that temperature of different colors to the sun on a prism . He found out the colors were red,violet, and infrared. Wavelength=size
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Discovered the planet Pluto and studied the “canals” on Mars. Built the Lowell observatory in flagstaff,AZ to study mars.
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One of the inventors of the Hertzsprung_Russell diagram. The HR diagram shows the correlation between the absolute magnitude (brightness) and the spectral type of a star.
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developed the theory of relativity, one of the two pillars of modern physics. And helped study everything from gravitational waves to Mercury's orbit.(1905)
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Using the color of the stars, discovered the universe is expanding. Hubble’s law, galaxies are moving away from each other .
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first discovered radio waves emanating from the Milky Way. He is considered one of the founding figures of radio astronomy.
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Russian sent Sputnik into space which was the first satellite, this made the United States work harder which made NASA
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First human (Soviet) to orbit Earth 108 minutes
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1st U.S Citizen to orbit Earth 3X
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Designed to land humans on earth. There were Apollo 11,12,13,14,15,16,and 17.7and 9 orbited earth. 8 and 10 orbited the moon. 13 tried to land on the Moon but failed due to malfunctions.
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First human to land on the moon in the Apollo mission 11
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Falcon Heavy is a partially reusable heavy-lift launch vehicle designed and manufactured by SpaceX. It is derived from the Falcon 9 vehicle and consists of a strengthened Falcon 9
