Challenging puzzle for experienced crossword solvers
Celestial Instruments of Nautical Lore
Challenging puzzle for experienced crossword solvers
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Across
- 1. Nighttime tool for finding hour by stellar arrangement
- 2. Quarter circle frame measuring celestial altitude for sailors
- 4. Obscure Persian-origin instrument for star altitude measurement
- 7. Navigator’s diary recording speed, direction, and incidents
- 9. Device dividing an arc to measure altitude of heavenly bodies
Down
- 3. Ancient analog computer plotting stars for navigation
- 5. Suspended ring assembly ensuring steady navigation instruments
- 6. Systematic mapping of seas for progressive course plotting
- 8. Magnetic pointer once guiding ships through unknown waters
- 10. Old term for sailor often mastering navigational arts
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