Space Vocab

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Across
  1. 2. a system of stars, gas, and dust held together by gravitational attraction.
  2. 5. a group of stars that forms a picture by connecting the stars
  3. 7. the layer of gases that surrounds a planet.
Down
  1. 1. a round body that orbits a star.
  2. 2. a force of attraction that exists between two masses
  3. 3. a group of stars that forms a pattern
  4. 4. the path followed by an object revolving around another object caused by gravity.
  5. 5. The imaginary line around which a planet rotates
  6. 6. a measure of how much is in an object