Across
- 2. a large, round object that revolves around a star and has cleared the region around its orbit
- 3. an imaginary line around which an object spins
- 4. an explosive eruption of waves and particals into space
- 8. a group of stars that forms a pattern
- 9. the path an object takes as it revolves around a star, planet, or moon
Down
- 1. one full orbit around the sun
- 3. a rocky mass up to several hundred kilometers wide that revolves around the sun
- 5. one whole spin of an object on its axis
- 6. any of the 4 planets in our solar system beyond Mars
- 7. a natural object that revolves around a planet