Note 295 — SECOND PART. The Astronomy of Dante. (continued 2)

Antonelli thinks the four stars were α and β Crucis, α and β Centauri, all of which had been mentioned by Ptolemy, and all lie near the circle which marks the limit of circumpolar stars in the supposed latitude of Purgatory (32° south). The three stars he says were ζ Navis, Canopus, and Achernar:—Antonelli, Accenni alle Dottrine Astronomiche nella Divina Commedia.