Coronavirus (COVID-19) While museums are closed, the Science and Society Picture Library prints site is fully operational and we have added an FAQ page here.

Bras horary quadrant, 1549.

Bras horary quadrant, 1549.
4 0 c m
actual image size: 25cm x 32cm


This electrotype copy of rectangular horary quadrant was made by Georg Hartmann (1489-1564) in Nuremberg, Germany. Horary quadrants were used for finding local time by sighting either the Sun or a bright star at night. Held vertically, a measurement could be taken from the position on the scale of a moveable bead on the thread of the instrument's plumb bob. The instrument was derived from the astrolabe and first appeared during Medieval times. Like its predecesor, it includes a two-dimensional depiction of the heavens that is reduced to a quarter. This reverse view shows extra timekeeping scales.

Image Details

Image Ref.

© Science Museum / Science & Society Picture Library

buy a print

Select size
Select finish
How many prints?

buy a framed print

buy a canvas

buy a framed canvas