Note 471 — SECOND PART. The Astronomy of Dante. (continued 3)
Reading edition
See Moore, Studies in Dante iii. pp. 75-84, for a detailed discussion of this passage. Several commentators have held that lines 1 to 6 describe the dawn of day elsewhere; and it is true that it would be nearly 6 a.m. and Pisces would be on the horizon in Italy when the hour was nearly 9 p.m. in Purgatory.