Navigator's Tool Uses Position of Celestial Bodies
This page is the CodyCross answer for the clue below from Past and Present Tech, Group 1443, Puzzle 3 (Light Bulbs).
Question is: Navigator's Tool Uses Position of Celestial Bodies
and the answer is: ASTROLABE
Word Meaning:
ASTROLABE — An astronomical and navigational instrument for gauging the altitude of the Sun and stars.
Definitions from Wiktionary.