Across
- 4. Time measured by the stars
- 6. Everywhere on the Sun's surface
- 7. Newtonian Mirror
- 8. Telescope for each eye
- 10. Uses multiple Telescopes
- 11. Longest or shortest day
- 14. Four bright moons
- 15. Inline with the Sun
- 16. Studying the colors of the stars
- 17. Edge of the solar system
Down
- 1. Wavelength of the oldest light
- 2. Corrects the blurry sky
- 3. Bends light
- 5. Shorter than we can see
- 9. Newtonian aberration
- 12. The line of the planets
- 13. Lowell's passion