stars

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Across
  1. 3. the apparent brightness a celestial object would have if it were located at a standard distance of 10 parsecs
  2. 5. the quality or state of giving out or reflecting light.
  3. 7. a central plain where everything inside exists
  4. 9. the obvious
  5. 10. the thing that is to be said to make our universe
Down
  1. 1. the early stage of a star being formed
  2. 2. a hot remnant core of a star
  3. 4. an astronomical distance
  4. 6. a cataclysmic explosion of a star
  5. 8. a giant cloud of gas and dust in space
  6. 11. a vast gravitation of stars planets gas and dust