Almagest Book IX: Planetary Mean Motion Tables

As with previous large tables, I’ve transcribed the Tables of Mean Motion into a set of Google Sheets.

In this, I have rearranged the tables to be in a more sensical order1 (descending periods of time).

Also, you may notice that the longitudes for Mercury and Venus are the same to that of the sun. This is not an error. As we stated in the last post, these two have the same mean motion in longitude as the sun.



 

  1. Ptolemy arranged his tables to make them fit on a single page.