| RefNo | MA/251/28 |
| Previous numbers | MA.251 |
| Level | Item |
| Title | Magnetic and astronomical observations at the Madras Magnetic Observatory, India, by Samuel Owen Edgar Ludlow |
| Creator | Ludlow; Samuel Owen Edgar (d.1888); British army officer in India |
| Date | April-May 1842 |
| Description | Absolute declination calculations, commencing with measurement of the angle betwen the wire of the reading telescope and transit made with the repeating theodolite. Deviation of the transit based on observations of three pairs of stars, and other calculations.
Signed [p.2]: 'S.O.E. Ludlow Supt' and dated 'Madras 8th June 1842'. |
| Extent | 2p. |
| Format | Manuscript |
| PhysicalDescription | Ink on paper. |
| AccessStatus | Open |