Ptolemy's Geocentric Model Astro Navigation Demystified

Ptolemy Put The Earth At The Centre Of The Universe Claudius Ptolemy was an Egyptian astronomer and mathematician who lived in Alexandria in the first century AD.  He believed that the Earth was at the centre of the universe as shown in the diagram of his geocentric model below. For the purposes of astro navigation, we…

Geocentric universe hi-res stock photography and images - Alamy

Geometry and the Cosmos (3) : from Ptolemy's circles to

The Scientific Revolution

Geocentric model - Wikipedia

ptolemy's model of the universe

The Scientific Revolution

Historical background

The Geocentric Model Astronomy 801: Planets, Stars, Galaxies

Geocentric model - Wikipedia

Astro Navigation Demystified

Venus phases, not in line with geocentric model