Crossword clues for the word: ASTROLABE The word ASTROLABE has appeared as an answer to at least 9 crossword clues on different crossword puzzles. Crossword clues for ASTROLABE Showing 1 to 9 of 9 results Clue(s) Medieval instrument used to determine the altitude of the sun Navigational device - there - surrounded by a flashing light Old navigation instrument Old navigational instrument Predecessor of the sextant. Sextant forerunner Sextant's forerunner Sextant's predecessor Sort of heavenly model: one with lots bare, wiggling