Both in antiquity and today Virgil is sometimes accused of ignorance in astronomy. This paper argues that, on the contrary, Virgil’s treatment of astronomical topics in Georgics 1.231-258 shows that he was quite familiar with the subject, and was able (when he wished to) to combine information from different sources (Aratus, Eratosthenes and other, unidentified ones) into a sensible and harmonious whole. On the other hand, the omission of essential steps between the various parts of his account, and the deliberate (...) confusion of science and myth show us that his ultimate aim was not to inform the ignorant but to amuse and surprise readers who were just as familiar with astronomy as Virgil himself. (shrink)