Transit Instruments at the Cape Observatory, 1857. Creator: Hare

Wall Art and Photo Gifts from Heritage Images

Transit Instruments at the Cape Observatory, 1857. Creator: Hare

Transit Instruments at the Cape Observatory, [South Africa], 1857. The Transit Instrument...was constructed from the designs of the Astronomer Royal, Professor Airy...The optical parts...were made by Troughton and Simms; and the engineering work by Ransomes and Sims...By a very ingenious arrangement of microscopes in the stones which carry the bearings of the instrument, eight readings are taken of each observation, and may all be taken from one point, without the observer having to actually visit the different points of the circle. The instrument weighs nearly a ton, but is so accurately balanced that it is under perfect control, and may be easily moved by one finger. A very beautiful system of parallel motion carries a trough full of mercury for taking observations by reflection. This trough being filled from the bottom of a bottle, the surface of the mercury is always clear'. From "Illustrated London News", 1857

Media ID 36336784

© The Print Collector/Heritage Images

Cape Of Good Hope South Africa Equipment Hare Instrument Instruments Observatory Royal Observatory Sir George Biddell Airy Telescope

MADE IN THE UK
Safe Shipping with 30 Day Money Back Guarantee

FREE PERSONALISATION*
We are proud to offer a range of customisation features including Personalised Captions, Color Filters and Picture Zoom Tools

FREE COLORIZATION SERVICE
You can choose advanced AI Colorization for this picture at no extra charge!

SECURE PAYMENTS
We happily accept a wide range of payment options so you can pay for the things you need in the way that is most convenient for you

* Options may vary by product and licensing agreement. Zoomed Pictures can be adjusted in the Basket.