Mercuri autem et Veneris stellae circa solis radios uti per centrum eum itineribus coronantes regressus retrorsus et retardatione faciunt, etiam stationibus propter eam circinationem morantur in spatiis signorum.
The planets Mercury and Venus, with their orbits, encircling the suns rays as on a centre, retreat backwards and delay their course; thus because of their orbit they delay at the nodes in their course through the signs.
final_alignments\Vitruvius_Architecture_Book_9.json