| Reference number | EL/O2/161 |
| Level | Item |
| Title | Letter, from Henry Oldenburg to John Cruzado, dated at London |
| Creator | Oldenburg; Henry (1619-1677); German natural philosopher in England; scientific correspondent |
| Date | 3 February 1676 |
| Description | Transcribes Flamsteed's reply to Cruzado's letter concerning the prime meridian, the equation of time, the investigation of longitude, about a small instrument to aid observations with the accuracy of two or three minutes; that Jonas Moore had become a patron of astronomy and so possibly an observatory would be built.
Table attached with 'equations of apparent time (as mentioned above) the Earth's aphelion being in the seventh degree of Capricorn, which may serve throughout this century, interpolating the sun's true place'. |
| Language | Latin |
| Extent | 8p |
| Format | Manuscript |
| Place origin | London, England |
| Origin coordinates | 51.50853, -0.12574 |
| Digital images | View item on Science in the Making |
| Access status | Open |
| Related material | Transcribed and translated in 'The correspondence of Henry Oldenburg', ed and trans by A Rupert Hall & Marie Boas Hall, vol 12, pp 150, 172 |
| URL description | Also available on Early Modern Letters Online |
| URL | http://emlo.bodleian.ox.ac.uk/profile/work/6e04a58b-894f-41aa-8c48-1321a2181863 |
Fellows associated with this archive
| Code | Name | Dates |
| NA8001 | Oldenburg; Henry (c1619 - 1677); scientific correspondent | c1619 - 1677 |