Full text: de Sacrobosco, Johannes: Sphaera Ioannis de Sacrobosco

24. .II.
DE ORTV ET OCCASV SIGNO-
rum ſecundum Aſtrologos, ſeu de aſcenſio-
nibus & deſcenſionıbus Signorum.

0045-01
0045-02

25. ¶ Quid intelligant Aſtronomi per ortum &
occaſum alicuius ſigni zodiaci, quidque quidq́; ſit
oriri & occidere rectè ac obliquè.

SEquitur de ortu & occaſu fignorum fignorũ prout ſumunt ſumũt
Aſtronomi, & pri{us} {in} ſphæra recta. Sciendum
est, quòd tam {in} ſphæra recta, ꝗ̈ obliqua, aſcen-
dit æqu{in}octialis circul{us} ſemper vniformiter, ſcili-
cet {in} temporib. æqualib{us} æquales arc{us} aſcendunt. Mot{us} enim cœli vniformis est, & angul{us} quem fa-
cit æqu{in}octialis cum horizonte obliquo non diuerſi-
ficatur {in} aliquib{us} horis. Partes verò Zodiaci non
de neceßitate habent æquales aſcenſiones {in} vtraque
ſphæra, quia quantò aliqua Zodiaci pars recti{us} ori-

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