Black and white printed paper planisphere with a central star chart, concentric numbered scales and calendar rings, labeled Astrolabe For Lat. 41 across the top.

Celestial Planisphere Called Astrolabe for Latitude 41

A printed paper planisphere with a large circular star chart at center, surrounded by concentric rings of numbered scales, calendar tables and zodiac signs. Text labels in the corners name constellations and instructions, and the sheet shows creases, tears and dark stains.

Artist: De Witt
Date: 1780
Medium: paper (overall material)
Source: Smithsonian (National Museum of American History)
Size: 2560 × 2508 px

Download full size

Public domain · Smithsonian (National Museum of American History) releases this image under CC0 (latest date 1780).
Rights checked 2026-11-05 · tier A · as stated by the source: CC0 (Smithsonian Open Access)

Credit (appreciated, not required for public-domain works): Smithsonian Institution, National Museum of American History

18th century astronomy scientific instruments star chart celestial map constellations planisphere printed map