Full text: de Sacrobosco, Johannes: Iohannis de Sacro Bvsto Libellvs de Sphaera : accessit eivsdem avtoris compvtvs ecclesiasticus, et alia quaedam, in studiosorum gratiam edita

174. XIII.

Sed iuxta G eometricam & ueriorem ſententi-
am, centrum utriuſq;
H orizontis est oculus uiden-
tis, ac
H orizontem ſibi circumſcribentis.

175. XIIII.

D iameter H orizontis rationalis non potest in-
ueſtigari propter immenſam & incognitam diſtan-
tiam extremi cœli.

176. XV.

Se d de D iametro ſenſibilis H orizontis ſic loqui-
tur
M acrobius: H ic H orizon, quem ſibi uniuſciuſq;
circumſcribit aſpectus, ultra trecenta & ſexaginta
ſtadia longitudinem intra ſe continere non poterit.

C entum enim & octaginta ſtadia non excedit acies
contra uidentis.

177. XVI.

C um M acrobius ſequatur E ratoſthenem, qui uni
gradui cœleſtis circuli aßignat 700. ſtadia, quæ qua-
drant ad 15 miliaria germanica communia, manife-
ſtum eſt iuxta
M acrobij ſententiam, non poſſe ocu-
los conſpectum ferre ultra 4 huiuſmodi miliaria,
quæ propemodum reſpondent 180. ſtadijs.

178. XVII.

H æc ſententia M acrobij ſatis commoda est, &
à
G eometricis demonſtrationibus non ualde diſſen-
[...] .

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