Heliocentrism or the ripple effect

Heliocentrism or the ripple effect

A blog post from Helena Wee on research for her new animation:

The industrial revolution is just one chapter in the history of science and technology. Many theories have fallen out of favour to be replaced by new ones. The solar system did not always have eight planets revolving around the Sun. Early versions had the Earth at the centre with the Sun and planets circling it. Pluto lost its planetary status and was relegated to the Kuiper belt in 2006.

Here are some different versions of the solar system:

 

Planetary configuration for 18 March 816 (Sun and Moon and observations for the other five planets):

Aratea_93v

 

Ibn al-Shatir’s model for the appearances of Mercury:

220px-Shatir500

 

Qutb al-Din al-Shirazi depicting an epicyclic planetary model:

Qutb al-Din al-Shirazi

 

Icelandic geocentrism:

Geocentrism-iceland

 

Ptolemaic geocentric cartographer Bartolomeu Velho:

Bartolomeu_Velho_1568

 

Andreas Cellarius (1660), heliocentric:

HeliocentricAndreasCellarius