Did Ibn Sina Observe the Transit of Venus of 1032 CE
Published: Sep 1, 2012
The Persian polymath Abū ‘Alī Ibn Sīnā (980-1037 AD), known to early Western sources as Avicenna, records in one of his works, Compendium of the Almagest that ‘I say that I saw Venus as a spot on the surface of the sun’. The date and place of the observation are not given. This statement has been quoted subsequently by some Muslim astronomers, for example, by Naīr al-Dīn al-ūsī (1201–1274 AD). A transit of Venus indeed took place in Ibn Sīnā’s...