Historical Astrolabe from 1603 - Ancient Astronomical Instrument #2307984 (License: Personal Use)

This black-and-white line drawing depicts a classic planispheric astrolabe dated 1603, featuring a rotating rete with star pointers, a mother plate (mater) with climate-specific刻度, and an alidade for sighting celestial bodies. The instrument includes concentric rings marked in degrees, zodiac signs, and hour lines, reflecting advanced medieval Islamic and European craftsmanship. Its central pivot and suspension ring indicate portability and field use by astronomers, navigators, and scholars.

Used on educational or museum webpages about historical scientific instruments, astronomy history, or Islamic contributions to science; targets users researching antique navigation tools or STEM heritage.