Refracting telescope with equatorial mounting, Washington DC, USA, 1876.

United States Naval Observatory

 
Refracting telescope with equatorial mounting, Washington DC, USA, 1876.
4 0 c m
 
33cm
actual image size: 25cm x 32cm

Description

Photograph of one the telescopes at the United States Naval Observatory in Washington when it occupied its original site at Foggy Bottom. This view shows an equatorially mounted refracting telescope of 24.5 cm (9.62 inch) aperture made by the German makers Merz & Mahler of Munich. The telescope was one of the original instruments installed at the observatory when it was completed in 1844.

© Science Museum / Science & Society Picture Library

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