Cum autem in maioris tympani labro fuerint signorum caelestium deformationes, id autem sit inmotum et in summo habeat deformatum cancri signum, ad perpendiculum eius in imo capricorni, ad dextram spectantis librae, ad sinistram arietis signum, ceteraque inter eorum spatia designata sint, uti in caelo videntur.
Now since the representations of the signs of the zodiac are on the margin of the greater drum, this is to remain unmoved. The sign of Cancer is to be figured at the top; perpendicularly below it, the sign of Capricorn is at the bottom. On the right of the spectator, the sign of Libra; on his left, that of Aries. The other signs are to be marked within their spaces as they appear in the sky.
final_alignments\Vitruvius_Architecture_Book_9.json