Type: instrument
Inv. No. 40443
Source: MHS
This unusual astrolabe from Nuremberg does not have the customary projection of altitude and azimuth lines on its two latitude plates, but only lines for dividing the day into ‘unequal’ hours, i.e. numbered between sunrise and sunset, and the 12 astrological houses. Rotatable above these plates is the ‘rete’, usually a planisphere of the stars, but here reduced to the ecliptic circle, marked with the zodiacal signs and their planetary ‘rulers’. All of this means that the instrument was primarily intended for use in astrology.
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