Early modern European · presented 7 August 1709
Cassini's apparent path of Mercury
Diagram of Mercury's geocentric path, 1708–1715, presented to the Académie royale des sciences
A plot of Mercury's path as seen from a fixed Earth over 1708–1715, showing the repeated loops of its retrogradations with the Sun's apparent annual path dotted through the middle. It is known from a reduced copy in Ledger's book of 1882, which says J. D. Cassini presented the drawing to the French Academy of Sciences on 7 August 1709; Ledger also reproduces a Cassini diagram of the apparent paths of Jupiter and Saturn.
- Author
- J. D. Cassini
- Date
- presented 7 August 1709
- Original language
- French
- Kind
- Mathematical astronomy
- Planets
- Mercury, Jupiter, Saturn
Editions
One edition.
| Year | Edition | © |
|---|---|---|
| 1882 | Edmund Ledger, The Sun, its Planets and their Satellites: A Course of Lectures upon the Solar System, read in Gresham College, London, in 1881 and 1882 (London: E. Stanford, 1882) | PD |
Read it
One digitised copy.
- Ledger, The Sun, its Planets and their Satellites (1882), with Figs. 24–25 after CassiniUniversity of Toronto, via Internet ArchivePDOpen ↗
Copies stay with their holders; every link opens their site. Licence: PD public domain · CC BY · CC BY-SA · © rights reserved · ? not stated.
References
Also on the Early modern and modern shelf
| Date | Source | Planets | Kind |
|---|---|---|---|
| c. 1580–1600 | Tycho Brahe's Mars observationsTycho BraheObservation | Ma | Observation |
| 1609 | Astronomia novaJohannes KeplerTheory / model | Ma | Theory / model |
| 28 December 1612 – 28 January 1613 | Galileo's notes recording Neptune as a 'fixed star'Galileo GalileiObservation | Ne | Observation |
| 1632 | Dialogo sopra i due massimi sistemi del mondoGalileo GalileiTheory / model | Me Ve Ma Ju Sa | Theory / model |
| 1647 | Christian AstrologyWilliam LillyAstrological | Me Ve Ma Ju Sa | Astrological |
| 1756 (1st edition); many later editions | Astronomy Explained upon Sir Isaac Newton's PrinciplesJames FergusonTheory / model | Me Ve | Theory / model |