[48] Almagest, Bk. viii.
[49] Greek peri near, apo away from, ge Earth.
[50] Syntaxis, book VII.; Delambre, Histoire de l’Astronomie Ancienne Vol. II. page 247 (1817 edition).
[51] Venus had passed her “inferior conjunction with the sun” on Sept. 15.
[52] It amounts to 5 degrees of longitude in 300 years.
[53] This is evident from the way he treats them, picking up an epicycle or a deferent just as best suits the purpose in hand and explaining sometimes that either would answer equally well.
[54] Taken from the Almagest catalogue, as given in Delambre’s History.
[55] Fifteen stars.
[56] Lockyer, Dawn of Astronomy, p. 196.