Astronomy Project Crossword

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Across
  1. 3. A system filled with millions of stars, gas, dust, and planets, held together by a gravitational pull.
  2. 5. a celestial object in orbit around a star
  3. 6. a star in the Milky Way galaxy located in a spiral arm about two-thirds of the way from the center of the galaxy.
  4. 7. a natural satellite of a planet.
  5. 9. unit of measurement; is used to measure the distance between stars and galaxies in space.
  6. 10. The spinning of a planet on its axis. For Earth, it takes 24 hours to complete 1 ____.
Down
  1. 1. The galaxy you live in
  2. 2. Made up of the planets, moons, asteroids, comets, dust, and gas that orbit the Sun
  3. 4. The Earth completes 1 ____ every 365 days
  4. 8. chunks of rock that burn upon entering a planet’s atmosphere.