Stars

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Across
  1. 2. a unit of astronomical distance equivalent to the distance that light travels in one year
  2. 4. a corresponding line on a planet or other body
  3. 5. an obscuring of the light from one celestial body by the passage of another between it and the observer or between it and its source of illumination
  4. 7. a small compact particle of a substance
  5. 10. a reddish gaseous layer immediately above the photosphere of the sun or another star. together with the corona, it constitutes the star's outer atmosphere
Down
  1. 1. a brief eruption of intense high-energy radiation from the sun's surface
  2. 3. the luminous envelope of a star from which its light and heat radiate
  3. 6. a state in which opposing forces are balanced
  4. 8. a spot appearing on the suns surface, dark in contrast to its surroundings
  5. 9. the rarefied gaseous envelope of the sun and other stars