Astrolabie. The mesure of this longitude of sterres is taken in the
lyne ecliptik of hevene, under which lyne, whan that the sonne
and the mone ben lyne-right or elles in the superfice of this lyne,
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than is the eclips of the sonne or of the mone; as I shal declare,
and eek the cause why. But sothly the Ecliptik Lyne of thy
zodiak is the outtereste bordure of thy zodiak, ther the degrees ben
marked.
Thy Zodiak of thyn Astrolabie is shapen as a compas which that
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