chris' U3 vocab

123456789101112
Across
  1. 7. the brightness of a star as seen from earth
  2. 9. a measure of how bright a star would be if it were seen from a standard distance
  3. 11. a large cloud of dust and dust
  4. 12. a graph that shows the relationship between a star's surface and absolute magnitude
Down
  1. 1. all of the frequencies or wavelengths of electromagnetic radiation
  2. 2. a star that has collapsed under gravity
  3. 3. a collection of stars,dust,planets
  4. 4. a gigantic explosion in which a massive star collapses and throws its outer layers into space
  5. 5. the distance that light travels in a year
  6. 6. the actual brightness of an object such as a star
  7. 8. a small hot dim star that is the left over center of an old star
  8. 10. space and all the matter and energy in it