Book 2
5.14
Posidonius relates, that from the top of a high house in a town about 400 stadia distant from the places mentioned, he perceived a star which he believed to be Canopus, both in consequence of the testimony of those who having proceeded a little to the south of Iberia affirmed that they could perceive it, and also of the tradition preserved at Cnidus; for the observatory of Eudoxus, from whence he is reported to have viewed Canopus, is not much higher than these houses; and Cnidus is under the same parallel as Rhodes, which is likewise that of Gades and its sea-coast.
