Astronomy Class Crossword

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Across
  1. 1. The shift or movement of an object nearby against a distant background when it is viewed from two different positions
  2. 3. When a moon's phase is becoming smaller.
  3. 5. planet with the most moons in our solar system.
  4. 9. __________ magnitude - How bright an object looks from earth.
  5. 10. A place in space where gravity pulls so much that light can’t escape
  6. 12. composed of particles that do not absorb, reflect, or emit light, so they cannot be detected by observing electromagnetic radiation
  7. 14. An astronomical unit of about 3.26 light years
  8. 15. When the earth’s shadow is cast upon the moon
  9. 17. a stream of particles and energy emitted from a star.
  10. 20. An object that makes looking into the sky and seeing stars, planets, moons, etc. easier
  11. 21. __________ magnitude - An object's actual brightness.
  12. 22. A planet that is made up of gas and ice.
  13. 23. When moons match their rotation so they only show one face for the whole orbit.
  14. 24. The process in which the sun generates energy.
Down
  1. 2. The distance that light travels in a year (6 trillion miles)
  2. 4. lowest layer of earth’s atmosphere.
  3. 6. When a star ends its life with a big explosion
  4. 7. When the moon’s shadow is cast upon earth
  5. 8. smallest planet in our solar system.
  6. 11. When a moon's phase is becoming bigger.
  7. 13. A rocky planet, highly dense.
  8. 16. When planets appear too backtrack in the sky
  9. 18. Giant clouds of dust that come from a previous dead star, or new star.
  10. 19. first person to step on the moon.