Chaucer's Works, Volume 3 — The House of Fame; The Legend of Good Women; The Treatise on the Astrolabe; The Sources of the Canterbury Tales

by Geoffrey Chaucer

Lok whan that a planete is in the lyne meridional, yif that hir

altitude be of the same heyghte that is the degree of the sonne for

that day, and than is the planete in the verrey [wey of the sonne],

and hath no latitude. And yif the altitude of the planete be

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heyere than the degree of the sonne, than is the planete north fro

the wey of the sonne swich a quantite of latitude as sheweth by

thyn almikanteras. And yif the altitude of the planete be lasse

than the degree of the sonne, thanne is the planete south fro the

wey of the sonne swich a quantite of latitude as sheweth by thyn