Full text: de Sacrobosco, Johannes: Sphaera Ioannis de Sacro Bosco emendata


DE SACRO BOSCO, CAP. 3 portio zodiaci intercepta, ſemper relinquitur
ſupra horizontem. Vnde patet, quòd quàm
diu Sol eſt in illa portione intercepta, erit vn{us}

dies continu{us} ſine nocte. Ergo ſi illa portio fue-
rit ad quantitatem ſigni vni{us}, erit ibi dies con-
tinu{us} vnius menſis ſine nocte: ſi ad quantita-
tem duorum ſignorum, erit dies continu{us} duo-
rum menſium ſine nocte, & ita deinceps. Si-
militer contingit eiſdem, quòd portio zodiaci in-
tercepta ab illis duob{us} punstis æquidiſtantib{us}

à principio Capricorni, ſemper relinquitur ſub
horizonte: vnde cùm Sol eſt in illa portione in-
tercepta, erit vna nox continua ſine die, breuis

vel magna, ſecundum quantitatem interceptæ
portionis. Signa autem reliqua, quæ eis oriuntur
& occidunt, præposterè oriuntur & occidunt.
Oriuntur præpoſterè, ſicut Taur{us} ante Arie-
tem, Aries ante Piſces, Piſces ante Aquarium: & tamen ſigna his oppoſita oriuntur recto or-
dine, & occidunt præpoſterè, vt Scorpi{us} ante
Libram, Libra ante Virginem: & tamen ſigna
his oppoſita occidunt directè, illa ſcilicet quæ
oriebantur præposterè, vt Taur{us}.

52.1.

0158-01

I Llis autem , quorum zenith eſt in polo arcti-

co, contingit, quòd illorum horiz on est idem
quod æquinoctialis. Vnde cùm æquinoctialis

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