Space Systems Vocabulary

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Across
  1. 3. One of the different apparent shapes of the moon as seen from Earth.
  2. 4. An object that orbits a planet
  3. 5. The partial or total blocking of one object in space by another.
  4. 7. A natural satellite that orbits a planet.
  5. 9. A huge group of single stars, star systems, star clusters, dust, and gas bound together by gravity.
  6. 12. A ball of hot gas, primarily hydrogen or helium, that undergoes nuclear fusion.
  7. 13. An object that orbits a star, is large enough to have become rounded by its own gravity and has cleared the area of its orbit.
  8. 14. The path of an object as it revolves around another object in space.
Down
  1. 1. The movement of an object around another object.
  2. 2. All of space and everything in it.
  3. 6. System The system consisting of the sun and the planets and other objects that revolve around it.
  4. 8. an act of recognizing and noting a fact or occurrence often involving measurement with instruments
  5. 10. An imaginary line that passes through a planet’s center and its north and south poles, about which the planet rotates.
  6. 11. The spinning motion of a planet on its axis.