Astronomy Crossword

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Across
  1. 6. This once planet is now reclassified as a dwarf planet
  2. 7. A ____ is an area of visible stars that appear to create a picture in the sky
  3. 9. Your home planet
  4. 12. The furthest planet from the Sun in our solar system
  5. 13. We have sent 5 of these successfully to Mars; Sojourner, Spirit and Opportunity, Curiosity, & Perseverance
  6. 15. This planet spins on its' side relative to the other planets
  7. 17. The attractive force between any 2 objects with mass
  8. 18. Earth has 1 of these large round planet-orbiting objects.
  9. 20. A ___-year is the amount of distance light can travel in 1 Earth year. Used to measure very far astronomical distances (like infinity and beyond!)
  10. 22. This "belt" of icy objects outside of Neptune's orbit is home to Pluto.
  11. 24. The furthest terrestrial planet from the Sun.
  12. 25. the amount of time it takes a planet to spin once around its axis.
  13. 26. The name of our galaxy (and also a candy bar) - 2 words.
  14. 27. "Shooting Stars" are actually just these burning up in our atmosphere.
Down
  1. 1. This "cloud" surrounds our solar system made up of icy & debris.
  2. 2. Io, Europa, Ganymede and Callisto are 4 of Jupiters largest moons, better known as the "_____ Moons"
  3. 3. The hottest planet in our solar system and second closest orbiter of the sun.
  4. 4. This ringed planet is second only to Jupiter in size.
  5. 5. Venus is nicknamed "The ____ Star" because of its brightness and proximity to the sun at sunrise.
  6. 7. The small objects that orbit the sun leave icy or gassy tails when close to the sun.
  7. 8. Ceres, Pluto, Haumea, Makemake, and Eris are the officially recognized ____ planets.
  8. 10. The "Belt" is situated between Mars and Jupiter's orbits.
  9. 11. The amount of time it takes to complete 1 orbit around the sun.
  10. 14. 1 Astronomical Unit (or AU) is a unit used to measure distance in outer space. It's equal to exactly the distance from Earth to the __.
  11. 16. A ____ system consists of a star (or multiple stars) and everything orbit around it/them.
  12. 19. The biggest planet and home to the "Great Red Spot"
  13. 21. Jupiter, Saturn, Uranus & Neptune are known as the ___ Giants because of their non-solid surfaces.
  14. 23. Term for an object that orbits a planet, like a moon, not just the artificial ones we've put around Earth!
  15. 24. This moonless planet is the closest to the sun.