CH 24-Stars,Galaxies,& the Universe

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Across
  1. 2. the largest galaxies known are ___ galaxies
  2. 3. when a white dwarf gains enough matter from a companion to create a temporary nuclear explosion on its surface, a ___ occurs
  3. 4. our own sun is found in the ___ galaxy
  4. 7. he created an early catalog of non-stellar objects and used the letter M to identify them (1st and last name)
  5. 8. as a yellow dwarf, our sun lies on the ___ of the Hertzsprung-Russell diagram
  6. 11. when an astronomer first observes two stars close together in the sky, he can be sure they are a visual ___
  7. 12. planetary nebulas, white dwarfs, and ___ are later stages in the life of a star
  8. 14. in general, an recognizable pattern of stars is called an ___
  9. 18. he developed the Dasha solution, a Creation cosmogony (last name)
  10. 19. the ___ is immense because it shows how great God is.
  11. 20. most astronomers agree that the Milky Way can be classified as a ___ galaxy
  12. 21. according to the secular view of cosmogony, the universe is about 13.8 ___ year old
  13. 23. a secular astronomer would believe the first stage of stellar evolution is a ___
  14. 26. he developed the relationship between red shift and stellar distance (1st and last name)
  15. 29. some creation scientists believe that intense ___ may have slowed time on Earth during the first few days of Creation
  16. 30. astronomers believe that some ___ formed at the beginning of the universe and other others are remnants of supernovas
  17. 32. radiation that appears to be spread in all directions throughout the universe is called ___(initials)
  18. 33. these stellar objects are NOT very well understood yet
Down
  1. 1. he proposed an idea that became the Big Bang theory (last name)
  2. 5. the brightness of a star as it appears from Earth is its ___ magnitude
  3. 6. ___ and luminosity are the two factors used as the axes to plot stars on the Hertzsprung-Russell diagram
  4. 9. his objective when cataloging and naming nebulas was to help astronomers avoid confusing a nebula with a comet (last name)
  5. 10. he developed a system for naming stars that used Greek letters (last name)
  6. 13. most binary star systems are not ___ binary stars
  7. 15. a star that has a diameter 100 times (or more) larger than our sun is classified as a ___
  8. 16. he identified stars by their brightness within constellations (1st and last name)
  9. 17. stellar parallax is a method that astronomers may use to determine a star's ___ from the earth
  10. 22. he divided stars into six different ranks of magnitude (only name)
  11. 24. the process of stellar birth, aging, and death is called ___
  12. 25. all constellations are ___, but not all ___ are constellations
  13. 27. hydrogen and ___ are the elements that make up the bulk of most stars
  14. 28. at a billion light-years away, one could see the Milky Way and Andromeda galaxies, and many smaller ones, forming the ___ of galaxies
  15. 31. a cloud of gas or dust that can be seen against a background of stars