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Description: | One of nineteen photographs taken at the Royal Observatory, Cape of Good Hope, South Africa, showing the dome and building for the 7-inch Heliometer by Messrs Repsold and Sons, Hamburg. Used widely by Sir David Gill to make stellar parallax measurements from 1887 onwards. | License: | http://creativecommons.org/licenses/by-nc-sa/2.5/ | Subjects: | photograph heliometer | Temporal: | 1909 | Source: | Science Museum | Creator: | Royal Observatory (Cape of Good Hope) | Identifier: | http://collectionsonline.nmsi.ac.uk/grab... | Go to resource |
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