Lunar globe with mechanical stand, 1797.
4 0 c m
 
31cm
actual image size: 23cm x 32cm

Lunar globe with mechanical stand, 1797.

© Science Museum / Science & Society Picture Library

Description

Published in 1797, this printed Moon globe was produced by the British portrait artist John Rusell RA (1745-1806) and shows the nearside of the lunar surface. Mounted in an elaborate bras stand the whole apparatus was entitled 'Selenographia'. The mechanism was designed to demonstrate Lunar Libration; the slight wobble of the Moon as it rotates. The globe was based on Rusell's accurate measurements and observations of the Moon, which he obtained by using a micrometer with his telescope. Financed through private subscription, only small numbers were ever produced. Even fewer were mounted on an intricate mechanical stand with an asociated explanatory pamphlet.
 

Image Ref.

10197354
 

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