Across
- 1. aphelion
- 4. south
- 5. sphere, celestial sphere
- 10. mean
- 11. east
- 13. revolution
- 15. compass
- 17. nutation
- 18. precession
- 21. north
- 22. azimuth
- 24. period
- 25. tilt
Down
- 2. perihelion
- 3. ellipse
- 4. zenith, solar zenith
- 6. solstice
- 7. plane, equatorial plane
- 8. dome
- 9. , rotation
- 12. day, solar day
- 14. equinox
- 16. meridian, ante meridian
- 19. altitude
- 20. meridian, post meridian
- 23. west