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

IO. DE SACROB. Sol {in}. ccclx v. dieb{us} &. vj. horis ferè. Ven{us} &
Mercuri{us} ſimiliter ferè cum Sole. Luna verò {in}
. xxvij. dieb{us} & octo horis.

9.1.

ORT-
OCC

10. DE COELO.
¶ Cœlum moueri circulariter, &
eſſe figuræ ſphæricæ.

QVòd autem cœlum voluatur ab oriente {in}
occidentem, ſignum est: Stellæ quæ oriun-
tur {in} oriente, ſemper eleuantur paulatim
& ſucceßiuè, quouſque {in} medium cœli veniant, &
ſunt ſemper {in} eadem prop{in}quitate & remotione
ad {in}uicem, & ita ſemper ſe habentes, tendunt {in} oc-
caſum cont{in}uè & vniformiter.

Est & aliud ſignum: Stellæ quæ ſunt iuxta
polum arcticum, quæ nunquam nobis occidunt, mo-
uentur cont{in}uè & vniformiter circa polum deſcri-
bendo circulos ſuos, & ſemper ſunt {in} æquali diſtan-
tia ad {in}uicem & prop{in}quitate. Vnde per iſtos duos

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