The reference is right, for the 'motus celi' are discussed in the Almagest, lib. |
The first Arabic translation of the Almagest was made Arab astronomers. |
The Almagest also contains a star catalogue, which is a version of a catalogue created by Hipparchus. |
Ptolemy's Almagest is the only surviving comprehensive ancient treatise on astronomy. |
Tables of mean motions of the Sun are given in Ptolemy's Almagest, lib. |
Ptolemy's Almagest was one of the works which Arabic scientists studied intently. |