| Reference number | EL/F1/101 |
| Level | Item |
| Title | Letter, from John Flamsteed to Henry Oldenburg, dated at Derby |
| Creator | Flamsteed; John (1646-1719); astronomer; astronomer royal |
| Date | 24 August 1673 |
| Description | Discussing Cassini's method for observing the diameter of Jupiter and parallax of Mars; regrets that Cassini's letters did not cover the meridional altitudes of the sun; criticisms about the letter which discussed the moon's right ascension from the sun for the meridian of Paris; suggests observations of the moon's diameter with discussion of Horrocks's theory on this topic |
| Language | English |
| Extent | 3p |
| Format | Manuscript |
| Place origin | Derby, Derbyshire, England |
| Origin coordinates | 52.92277, -1.47663 |
| Access status | Open |
| Related material | Transcribed in 'The correspondence of Henry Oldenburg', ed and trans by A Rupert Hall and Marie Boas Hall, vol 10, p 155 |
| URL description | Also available on Early Modern Letters Online |
| URL | http://emlo.bodleian.ox.ac.uk/profile/work/d02e83b4-5e31-4a1b-ab00-91b978c4d6a5 |
Fellows associated with this archive
| Code | Name | Dates |
| NA8001 | Oldenburg; Henry (c1619 - 1677); scientific correspondent | c1619 - 1677 |
| NA8219 | Flamsteed; John (1646 - 1719); astronomer | 1646 - 1719 |