1. Astronomy Vocabulary

2. astronomy The study of space and the objects (planets, moons, stars) in it

3. astronomer a person who studies astronomy

4. telescope Magnifies distant images using light

5. spectroscope Studies a star’s make- up by breaking down its light

6. sextant measures the altitude of a star

7. Nicholas Copernicus Stated that the sun was at the center of the solar system

8. Johannes Kepler Stated that planets kept orbits

9. Galileo Galilei the first to use the telescope

10. Built and used the first telescope observatory Tycho Brahe

11. Isaac Newton developed the laws of motion