Astronomy

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Across
  1. 2. Point directly overhead.
  2. 5. Gas and dust cloud.
  3. 7. Variable star used for distance measurement.
  4. 11. Orbital body around a star.
  5. 12. Distance measurement method.
  6. 18. Celestial body obscuration.
  7. 19. Distant object viewer.
  8. 21. Space traveler.
  9. 23. Celestial path.
  10. 25. Luminous celestial body.
Down
  1. 1. Star pattern.
  2. 3. One body blocking another.Umbra - Total shadow during an eclipse.
  3. 4. Shooting star.
  4. 6. Moon-related.
  5. 8. Vast system of stars.
  6. 9. Closest point to Earth.
  7. 10. Relating to the sky or space.
  8. 13. Farthest point from the Sun.
  9. 14. Icy body with a tail.
  10. 15. Rotating neutron star.
  11. 16. Equal day and night.
  12. 17. Belt of constellations.
  13. 20. Exploding star.
  14. 22. Doppler effect in space.
  15. 24. Extremely bright, distant object.