ASTR&100 Final Exam Crossword

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Across
  1. 2. what make the Milky Way a spiral galaxy
  2. 5. large ball of gas undergoing nuclear fusion
  3. 11. home to the Milky Way’s
  4. 14. early 20th century astronomer (and now a space telescope)
  5. 17. energy generation process in star’s core
  6. 19. discovered that most spiral galaxies contain
  7. 20. determines a star’s lifetime
  8. 22. two-faced Saturnian moon
  9. 24. Asteroid or Kuiper
  10. 26. Milky Way galaxy type, specifically
  11. 28. skydiving hotspot
  12. 31. Arcturus, Aldebaran, and the Sun…someday (two words)
  13. 33. primary component of Saturn’s rings
  14. 34. famous short period comet, will be back in ‘61
  15. 37. planet smaller than some moons
  16. 40. a planet, but not in our solar system (prefix)
  17. 43. Brahe pet
  18. 44. breakfast food analogy for the Milky Way (two words)
  19. 45. crater-covered outermost Galilean moon
  20. 46. the stars near the Sun (abbrev.)
  21. 47. important solar mass threshold
  22. 48. Our
  23. 49. Important boundary in protoplanetary disk (two words)
  24. 51. closest star to Sun: ________ Centauri
  25. 52. discoverer of elemental abundances (two words)
  26. 53. what the Drake Equation seeks
  27. 54. tidal heating produces this on Europa, possibly other moons
  28. 56. big boom; two types
  29. 58. dwarf “star” that’s no longer a star
  30. 59. famous diagram, for short
  31. 61. home to CH4 lakes and seas
  32. 63. instigator of the “What is a Planet?” debate
  33. 64. number of Galilean Moons
  34. 65. Death Star-esque moon
  35. 67. not an explosion, but an expansion (two words)
  36. 68. in main sequence stars, the product of
  37. 69. home to most of Milky Way’s stars, gas, and dust
Down
  1. 1. exoplanet hunting space telescope (abbrev.)
  2. 3. dwarf star that lives “forever”
  3. 4. Mercury does it, so do exoplanets from time to time
  4. 6. number of planets in our SS with no moons
  5. 7. all the giant planets have them
  6. 8. If only I had been able to clear my neighborhood…
  7. 9. all space and matter that exists
  8. 10. requirement for life?
  9. 12. baby picture of the universe (abbrev.)
  10. 13. useful variable stars
  11. 15. two stars in orbit around a common center of mass
  12. 16. temperature-indicating absorption line
  13. 18. ice giant
  14. 21. first astronomer to measure galaxy
  15. 23. substance that makes Neptune & Uranus blue
  16. 25. The Milky Way, for example
  17. 27. most common type of matter and energy in universe
  18. 29. expanding universe smoking gun
  19. 30. avg distance between Earth and Sun (abbrev.)
  20. 32. old star cluster
  21. 35. “clumping” process that formed planetesimals
  22. 36. state of matter in
  23. 38. its escape velocity exceeds that of light
  24. 39. type of galaxy without
  25. 41. young star cluster
  26. 42. stellar property determined by luminosity and distance (abbrev.)
  27. 46. determined period/luminosity relationship for
  28. 50. unstable (in certain circumstances…) cloud (abbrev.)
  29. 55. It’s an asteroid and a dwarf planet
  30. 57. stars, ordered by spectral class
  31. 60. number of planets visible without telescope
  32. 62. any “cloudy” thing in space
  33. 66. 2nd smallest planet in our SS