Islamic · c. 1025–1028 CE
Doubts concerning Ptolemy
al-Shukūk ʿalā Baṭlamyūs
A thoroughgoing critique of Ptolemy's Almagest, Planetary Hypotheses and Optics, showing in great detail where Ptolemy had violated the principles of natural philosophy. It concerns whether the models that produce retrograde motion are physically admissible, not retrograde motion itself; no discussion of stations has been found in it.
- Author
- Ibn al-Haytham
- Date
- c. 1025–1028 CE
- Original language
- Arabic
- Kind
- Theory / model
- Planets
- General · no planet named
Editions
2 editions.
| Year | Edition | © |
|---|---|---|
| 1971 | Sabra, A. I. and N. Shehaby (eds.). Ibn al-Haytham: al-Shukūk ʿalā Baṭlamyūs. Cairo: Dār al-Kutub, 1971. | © |
| 1985 | Voss, Don L. Ibn al-Haytham's Doubts Concerning Ptolemy: A Translation and Commentary. PhD diss., University of Chicago, 1985. | © |
Read it
No digitised copy known.
No digitised copy known. The editions above are the way in.
Myths we don’t repeat
Checked, and left out.
- Myth 01
Not an explanation of retrograde motion: the book questions Ptolemy's models, not the phenomenon.
References
Also on the Asia, Islam and medieval Europe shelf
| Date | Source | Planets | Kind |
|---|---|---|---|
| c. 6th century CE | Bṛhat Saṃhitā, ch. 6: the course of MarsVarāhamihiraAstrological | Ma | Astrological |
| c. 900 CE (observations 877–918) | al-Zīj al-Ṣābiʾal-BattānīMath. astronomy | Me Ve Ma Ju Sa | Math. astronomy |
| 13th century CE (al-ʿUrḍī d. 1266) | Treatise on planetary retrograde motionMuʾayyad al-Dīn al-ʿUrḍī (attributed)Theory / model | Me Ve Ma Ju Sa | Theory / model |
| 1261–1264 CE | Theorica planetarumCampanus of NovaraTheory / model | Me Ve Ma Ju Sa | Theory / model |
| 14th century CE (author d. 1375/6) | Nihāyat al-sūlIbn al-ShāṭirTheory / model | Me Ve Ma Ju Sa | Theory / model |
| c. 1391 CE | A Treatise on the AstrolabeGeoffrey ChaucerObservation | General | Observation |