| RefNo | MOB/049 |
| Level | Item |
| Title | Azimuth circle by Edward Troughton |
| Artist | Troughton, Edward |
| Date | early 19th century |
| Description | A repeating altitude azimuth circle, comprising a vertical axis, an azimuth circle, an alatazimuth mount and two telescopes. The altazimuth mount allows the telescopes to move along the vertical (altitude) and horizontal (azimuth) axes to aid the mapping of the stars. Manufactured by Edward Troughton and taken to India by Henry Kater for use in the Great Trigonometric Survey. |
| Extent | 1 instrument |
| ObjectName | Scientific Instrument |
| Materials | Brass |
| AccessStatus | Open |
| Provenance | Exact provenance unknown, possibly presented to the Society by Kater on one of his return trips to London |
| URLDescription | Digital version available on The Royal Society Picture Library |
| URL | https://pictures.royalsociety.org/image-rs-8464 |