Astronomy Puzzle #1

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Across
  1. 2. The outermost part of the sun's atmosphere
  2. 6. Large number of stars with their interstellar gas and dust
  3. 9. Remnants of the meteoroid that has been eroded in passage through earth's atmosphere before hitting surface
  4. 10. Glowing trail in the uppermost atmosphere which moves fast
  5. 12. A group of stars that seem to suggest the shape of an object
  6. 14. Noncircular orbit around the sun
  7. 15. Older name for minor planet
Down
  1. 1. Small body in the solar system
  2. 3. Point in where an object orbits around earth
  3. 4. The sun at the center
  4. 5. An object moving around a star
  5. 7. Two days each year when the sun is above and below horizon for equal time
  6. 8. Blocking of light from one body by another
  7. 11. Large rock moving in an orbit in the solar system
  8. 13. Object with non-stellar appearance