Astronomy 1

Edit Answers
123456789101112131415161718192021222324252627282930313233343536373839404142434445
Across
  1. 1. Although based on the moon, these don't actually align with moon orbits.
  2. 5. Constellation with Spica in it.
  3. 8. 365.25 days.
  4. 9. Constellation with Denebola in it.
  5. 12. Constellation with Deneb in it.
  6. 13. Sphere orbiting star.
  7. 14. One of the first known people to realize the Earth must be round.
  8. 19. Just under 24 hours.
  9. 21. A bunch of galaxies near each.
  10. 24. The north star.
  11. 26. A bunch of star systems orbiting each other.
  12. 27. The day with the Sun at the highest or lowest angle.
  13. 28. Distance light travels in a year.
  14. 31. Constellation with the North Star in it.
  15. 33. Distance from Sun to Earth.
  16. 34. Time to orbit the galaxy.
  17. 35. Super rich guy who had a gold nose.
  18. 36. Constellation with Aldebaran in it. Not Alderon.
  19. 37. Constellation with Arcturus in it.
  20. 38. On the cosmic calendar, Earth's birth month.
  21. 39. Canis Major's brightest star.
  22. 40. Authored the complete earth centered model of the solar system.
  23. 43. First person to realize gravity caused planets to orbit the Sun.
  24. 44. First person to see craters in the moon.
  25. 45. Beginning of cosmic calendar.
Down
  1. 2. Contains Rigel.
  2. 3. Orion's lower right leg.
  3. 4. Constellation with Capella in it.
  4. 6. Galileo was the first person to see __ around Jupiter.
  5. 7. Belief that stars do magical things to people.
  6. 10. A bunch of local groups together.
  7. 11. First to come up with an explanation of retrograde motion.
  8. 12. Messier was looking for __ when he found nebula instead.
  9. 15. First to put the Sun at the center of the solar system.
  10. 16. First to come up with elliptical orbits.
  11. 17. A little over 3 lightyears.
  12. 18. Planets and a star.
  13. 20. Constellation with Altair in it.
  14. 22. The plane of the solar system.
  15. 23. When a planet appears to move backwards.
  16. 25. A device that lets you see back in time.
  17. 29. Study of stars.
  18. 30. All of the superclusters together.
  19. 32. First person to see another galaxy.
  20. 38. Tycho was the first person known to see a __.
  21. 41. Constellation with Vega in it.
  22. 42. Gemini is home to Castor and __.