uranoscopy
/ˌjʊərəˈnɒskəpi/ /ˌjɔːrəˈnɒskəpi/(also ouranoscopy)
noun
The observation or study of celestial objects. Compare uranometry. Now historical and rare.
Origin
Late 16th century (in an earlier sense). Probably from urano- + -scopy. Compare post-classical Latin uranoscopia, modern Greek οὐρανοσκοπία, Italian uranoscopia.