star-gazer

Jason appointed Tiphys to be helmsman because he was a star-gazer, and knew the points of the compass.

From Tanglewood Tales by Nathaniel Hawthorne

Dissatisfied with the crude instruments of his time, he made his own telescopes; for it was his ambition to be not a mere star-gazer, but an earnest student of the heavens.

From A History of the Nineteenth Century, Year by Year Volume Two (of Three) by Edwin Emerson

He felt that if he had not rushed incontinently from the presence of that underground star-gazer Dr. Wilson, he must either have punched that respected person’s venerated head, or have laughed in his honored face.

From The Witches of New York by Q. K. Philander Doesticks

A triangular sail set above the skysail; if square it would be a moonsail, and if set above that, a star-gazer, &c.

From The Sailor's Word-Book An Alphabetical Digest of Nautical Terms, including Some More Especially Military and Scientific, but Useful to Seamen; as well as Archaisms of Early Voyagers, etc. by Sir Edward Belcher

Thus the learned star-gazer can reach his telescope under cover in wintry weather.

From East of Paris Sketches in the Gâtinais, Bourbonnais, and Champagne by Matilda Betham-Edwards