Astronomy Vocab

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Across
  1. 2. the large object that circles the Earth and that shines at night by reflecting light from the sun.
  2. 3. Made up of the planets, moons, asteroids, comets, dust and gas that orbit the Sun
  3. 4. made up of gas, dust, and billions of stars and have different shapes (elliptical, spiral, irregular)
  4. 6. large objects made of dust and ice that orbit the Sun
  5. 7. unit of measurement; used to measure the distance to stars and galaxies in space. The distance in one light year is equal to the distance light travels in one year.
  6. 8. occurs when an object in space passes directly between two other objects or between the object and the viewer.
Down
  1. 1. a celestial body that revolves around a star.
  2. 2. The spiral galaxy in which you live.
  3. 5. small, rocky objects that orbit the Sun
  4. 9. a star in the Milky Way galaxy located in a spiral arm about two-thirds of the way from the center of the galaxy.