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Home > All Images > 1989 > November > 15 Nov 1989

Images Dated 15th November 1989

Choose from 18 pictures in our Images Dated 15th November 1989 collection for your Wall Art or Photo Gift. All professionally made for Quick Shipping.


An astronomer with his astrolabe Featured 15 Nov 1989 Print

An astronomer with his astrolabe

An astronomer with his astrolabe, an illustration from the Nuernberg Chronicles of the World, published in 1493. The astrolabe was a primitive type of instrument used, in the form shown here, to measure the altitudes of stars (their angular heights above the horizon). The altitude of a standard star could be used to determine the time of night

© DR JEREMY BURGESS/SCIENCE PHOTO LIBRARY