Ch. 26.3 & 26.4 pgs. 840-849

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Across
  1. 2. A star _______ is a group of two or more stars that are held together by gravity.
  2. 4. An explosion so violent that the dying star becomes more brilliant than an entire galaxy.
  3. 11. A huge group of individual stars, star systems, star clusters, dust, and gas bound together by gravity
  4. 13. Loose groupings of bright, young stars.
  5. 14. A contracting cloud of gas and dust with enough mass to form a star
  6. 15. An ________ galaxy has a disorganized appearance and is typically smaller than other types of galaxies.
Down
  1. 1. A group of stars that seems to form a pattern as seen from Earth
  2. 3. A large cloud of gas and dust spread out over a large volume of space.
  3. 5. A spinning neutron star that gives off strong pulses of radio waves.
  4. 6. The enormously bright centers of distant galaxies
  5. 7. ________ galaxies have a bulge of stars at the center.
  6. 8. A star’s _____ determines that stars place on the main sequence and how long it will stay there.
  7. 9. A ______-mass star dies quickly because it consumes fuel rapidly.
  8. 10. A star system with two stars is called a _____ star.
  9. 12. A _____ is formed when a contracting cloud of gas and dust becomes so dense and hot that nuclear fusion begins.