julias crossword about space

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Across
  1. 5. A model of the Solar System in which the Sun is at the centre
  2. 9. A large space rock that orbits the Sun
  3. 12. A group of millions or billions of stars
Down
  1. 1. An object that orbits a planet or star and is human-made
  2. 2. An imaginary line halfway between the North and South Poles
  3. 3. Sunlight that hits the Earth's surface at a high angle
  4. 4. A half of the Earth, either north or south of the Equator
  5. 6. The galaxy in which the Solar System is located.
  6. 7. An imaginary line through an object around which it spins
  7. 8. An attractive force between any two objects that have mass
  8. 10. An event where one object in space blocks another from view Eclipses occur when the Earth
  9. 11. The time it takes a planet to rotate once