Space Exploration Vocabulary Review

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Across
  1. 4. A technique to find the distance to a nearby star using angles and triangles.
  2. 6. A roughly spherical ball of matter that orbits a star.
  3. 11. A device to measure the altitude of something in the sky.
  4. 12. A device to measure the spectrum of a star.
  5. 15. Describes the size of a light wave.
  6. 17. Telescope that uses a lens to focus light.
  7. 18. The shape of all orbits.
  8. 21. Meaning "same time as Earth", referring to a type of satellite.
  9. 25. How "clear/detailed" your astronomical image is.
  10. 26. The type of spectrum from a star.
  11. 27. The location of something in degrees relative to North
Down
  1. 1. A device to measure the azimuth of something in the sky.
  2. 2. A model of the universe where the Earth is at the center.
  3. 3. Type of rocket that drops fuel tanks as they are empty.
  4. 5. ______ motion, when planets appear to "go backwards" in the sky.
  5. 7. An "effect" that causes galaxies to look more red when they move away from us.
  6. 8. The height in degrees of something above the horizon.
  7. 9. A unit of measurement that is the distance from the Sun to Earth.
  8. 10. A ball of hot gas and plasma that produces energy through nuclear fusion.
  9. 13. A rocky and icy chunk of matter that is sometimes seen in the sky with a characteristic tail.
  10. 14. Telescope that uses a curved mirror to focus light.
  11. 16. A model of the universe where the Sun is at the center.
  12. 19. A network of satellites that helps us navigate on Earth.
  13. 20. Any naturally-occurring matter that orbits a planet.
  14. 22. The type of spectrum from a hot gas.
  15. 23. A light "fingerprint" of an element or star.
  16. 24. The top part of a rocket (the purpose of the launch!)
  17. 27. A rocky chunk of matter. Many are found in our solar system.