Ptolemy

Solar System

Technology Used

The technology that Ptolemy used was his eyes.

Date of Discovory

He discovered it in the Second Century AD.

What was the Discovory

Ptolemy thought that Earth was the centre of the solar system. Although he was wrong he then realised that there were other planets and moons. He also listed 48 constellations.

Ptolemys Contribution to Our Understanding

It shows that there are other planets and other interesting things out there.