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# Title: Nicolai Mercatoris Holsati, è Soc. Reg. Institutionum Astronomicarum Libri Duo, De Motu Astrorum Communi & Proprio, Secundum Hypotheses Veterum & Recentiorum præcipuas; Deqve Hypotheseon ex observatis constructione (shelfmark Leibn. Marg. 63)
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APPENDTZ
ad vesperam 19, cum viderentur propinquxe limbo, dies
Tune 6Z; e adtiuc dictabane cancum à limbo, urtacile esset
collectu, eas non exituras isto dic. Nubes de nox deinde
obstabane obserrancibus, ar die 20 orto Sole, cum nondum
compleri dies seprem, jam disporuerant. Apparens velo-
ciras prope centrum calis erar; ur s mansiller cadem, ma.
culxe quarriduo propemodum pervencurx Fuissene ad limbun
disci; sed secundum hanc hypochelin apparens velocitas im-
minui debuir, pront maculae à centro discessissent longius,
id quod re ipsa ita evenir. Sed _ Fgura COronX illius
nebulola, qua maculas ambierar, e prove centrum oblonsa
fuerar instar auristiumanx, cum ad limbum perventum eral,
concrahebatur, ut quae illic fuerar maxima, hic vidererur mini
ma; quo mocus circa axem solis circularis limilirer adstruitur.
Terrio, De Saturno es ejus sacelliribus. AnnO 1610.
Calileus primum deprehendie Sacurnum cricorporeum, cujus
nacivam faciem postmodum Eugenius AnNO 1655 acCu
racius determinavir, ex Syctema Sacurni in lucem edidie,
quale hic verbis describere conabimur. Adhibico igitur
Bloborulgari, elerato polum ejus boreum ad ipsum ulque
Lenich; cum globus ipse referet corpus Saturni, _ HOrizON
ligneus, planus d latus, reterr annulum saturni, dummodo
sparium incer elobum ec Horixoncem ligneum concipias
mulco amplius, e ipsum marsinem exrendas cousque, dunt
ejus diameter ad diamerrum globi eam circirer rarionem ob
linear, quae est 9 ad 4, ex excessum semidiamerri manginis
supra semidiametrum globi biparciaris, ita ur semis unus
cedat lacicudini annuli, ex alcer incerstirio, quod est intet
annulum e corpus Sacurni. Tum in plano Forizoncis, vel
annuli, undique continuato concipias circulum quendam Catis
longo incerrallo ipsum annulum ambiencem, in quo seratur
Comes Saturni ab Hugenio deprehensus primum anno
2655, Periodum suam absolvens diebus proxime 16. Ica
concipis jam Syltema Saturni. Deinde trisc cibi globulunt
quendum minurum, cum annulo, _ incerctirio ejus d cor-
pore Sacurni, qualia jam descripsimus, e globum ipsur
m4
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