Space

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Across
  1. 3. and disappears.
  2. 4. brightness: How bright a star would be if it were the
  3. 8. on its own body that orbits a star and does not have light. Year: A unit that measures distance in time.
  4. 9. A hot, gaseous body that emits light and heat.
  5. 11. system: A system that includes the sun and all the planets that orbit it.
  6. 13. it light? Does not emit light, only reflect it.
  7. 14. distance from Earth. Gas giants: Large planets made of gas.
  8. 15. The rotation of a planet around itself.
  9. 16. Cluster: A group of stars that appear as if the planet has a large
  10. 17. shines on its own, like the sun.
  11. 18. A small, stellar rock that floats in space
  12. 19. A huge home for stars and planets, such as the Milky Way.
  13. 21. A motaroid that hits Earth's surface. Comet-luminous toril.
Down
  1. 1. Moons that orbit planets.
  2. 2. The vast space that contains everything. Constellation: A stellar pattern visible in the sky.
  3. 3. Objects that orbit planets, such as the moon or satellites.
  4. 5. A large hody that orbits a star and does hot shihe oh its own
  5. 6. The revaluation of a planet around the Sun in
  6. 7. A large rock in space that orbits the sun.
  7. 10. The circular path flollowed by planets.
  8. 12. Plants: Small, stellar planets close to the sun. An object in space with a
  9. 19. The reason things fall down.
  10. 20. A ball of fire that suddenly appears in the
  11. 22. a year.