Title: Planispheric Astrolabe
Object type: Astrolabe
Date: dated 1065 AH/1654–55 CE
Artist:  Muhammad Zaman al-Munajjim al-Asturlabi 
Artist bio: Iranian, active 1643–1689
Artist nationality: Iranian
Artist role: Maker
Medium: Brass and steel; cast and hammered, pierced and engraved
Dimensions: H. 8 1/2 in. (21.6  cm)
W. 6 3/4 in. (17.1 cm)
D. 2 1/4 in. (5.7 cm)
Classification: Metal
Credit line: Harris Brisbane Dick Fund, 1963
Geography: Attributed to Mashhad   Iran      
Department: Islamic Art
Repository: Metropolitan Museum of Art, New York, NY