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Astronomy Vocabulary. The study of space and the objects (planets, moons, stars) in it. astronomy. astronomer. a person who studies astronomy. telescope. Magnifies distant images using light. spectroscope. Studies a star’s make-up by breaking down its light. sextant.
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The study of space and the objects (planets, moons, stars) in it astronomy
astronomer a person who studies astronomy
telescope Magnifies distant images using light
spectroscope Studies a star’s make-up by breaking down its light
sextant measures the altitude of a star
Stated that the sun was at the center of the solar system Nicholas Copernicus
Stated that planets kept orbits Johannes Kepler
the first to use the telescope Galileo Galilei
Built and used the first telescope observatory Tycho Brahe
Isaac Newton developed the laws of motion