Astronomy vocab

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Across
  1. 2. lines created by the elements of a star
  2. 5. the total or partial overshadowing of a celestial body by another
  3. 7. the apparent shift of an object against a stationary object
  4. 9. a celestial body moving in an elliptical orbit around a star
  5. 10. brightness
  6. 11. the process in which the nuclei of atoms fuse together to form larger atoms
  7. 12. place where comets originate from
  8. 13. when the sun reaches its lowest or highest point in the sky
  9. 14. a model of celestial motion in which the earth and all planets revolve
  10. 17. largest stage of an intermediate mass star
  11. 18. cool low mass star
  12. 20. largest stage of a high mass star
  13. 21. celestial body of hot gasses with a core like a furnace that makes its own energy
  14. 23. the motion of earth as it orbits the sun
  15. 26. Energy that is radiated in the form of waves
  16. 30. astronomer who proposed the universe formed in a single moment of
  17. 33. optical instrument used to separate light
  18. 34. a measurement to equal the average distance between the earth and
  19. 36. last stage of an intermediate mass star
  20. 37. a cloud of gas and dust in space
  21. 38. very hot and last stage of a low mass star
  22. 39. proposes that the universe formed 13.7 billion years ago
  23. 41. pull
  24. 44. meteoroids that burn up as they pass through the atmosphere
  25. 45. the sun
  26. 46. our galaxy
  27. 48. rocky chunks broken off of astroids or planets
  28. 49. distance light travels in a year
  29. 51. when a high mass stars life ends in a giant explosion
  30. 53. small rocky bodies in our solar system
  31. 54. the earliest stage of a star
  32. 55. distinctive patterns in the sky formed by groups of stars
Down
  1. 1. a model of celestial motion where the earth is in the center of the
  2. 3. an overshadowing of earth when the moon is between it and the sun
  3. 4. the change in sound because of the movement of the source relative to
  4. 6. an overshadowing of the moon when the earth is between it and the sun
  5. 8. band of rainbow colours created when white light passes through a prism
  6. 13. group of planets circling one or ore stars
  7. 14. diagram that tells the luminosity, size, and temperature of a
  8. 15. super collider in switzerland used to smash protons together
  9. 16. people who study objects in space
  10. 19. place where comets originate from
  11. 22. the tilt of the earth on its axis
  12. 24. triangle
  13. 25. the material that fills space made up of hot gas and dust
  14. 27. any object in space
  15. 28. shifting of light from an object towards the red(longer wavelength)
  16. 29. atmoshphere
  17. 31. meteoroids that are large enough not to entirely burn up as the pass through
  18. 32. small body made of rocky material and ice
  19. 35. a celestial body that orbits a planet
  20. 39. large sphere of incredibly tightly packed material with an immense
  21. 40. a technique for determining the distance to a visible object by creating an
  22. 42. result of a supernova collapsing in on itself
  23. 43. the motion of earth as its axis from west to east
  24. 47. streams of high energy particles ejected by the sun
  25. 50. american astronomer who proposed universe was expanding
  26. 52. changes of appearances in the moon as it orbits