The Night Sky pages 15-21

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Across
  1. 2. A star of average temperature and size in the middle of its life cycle.
  2. 4. Two stars that orbit each other and often look from a distance like one star.
  3. 6. A special instrument that helps us see faraway objects such as stars and planets by making them look closer.
  4. 9. A star in the middleof its life cycle that is cooler and dimmer than a blue giant.
  5. 10. The biggest of the red giant stars.
  6. 12. A cluster that never gathered enough dust and gas to become a shining star.
  7. 13. A huge ball of burning gas in space.
Down
  1. 1. A star late in its life cycle that is still burning but is shrinking and less bright.
  2. 3. Someone who studies stars and other objects in the sky.
  3. 5. A star whose life ends in a fast, spectacular explosion rather than becoming a dwarf star.
  4. 7. The stage in a star's development when its dust and gasses are still coming together, before it begins to shine.
  5. 8. A very hot, very bright star in the middle of its life cycle.
  6. 11. The path one object, like a planet, takes around another object, like a star.