astrognosy
/əˈstrɒɡnəsi/Now rare
noun
Knowledge of the stars; the branch of astronomy concerned with the fixed stars.
Origin
Early 19th century; earliest use found in Samuel Taylor Coleridge (1772–1834), poet, critic, and philosopher. From astro- + -gnosy, after German Astrognosie or its etymon post-classical Latin astrognosia.