ROYAL ASTRONOMICAL SOCIETY / SCIENCE PHOTO LIBRARY ROYAL ASTRONOMICAL SOCIETY / SCIENCE PHOTO LIBRARY
Troughton equatorial. This telescope and mount was made by the British instrument maker Edward Troughton (1753-1835). This artwork is from 'An Introduction to Practical Astronomy', published by William Pearson in several volumes between 1824 and 1829.
Model release not required. Property release not required.