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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)
# Folio 243, page id 820424455:0265
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Sect. 4.
ASTRONOMI .
maxima obscurario, sive immertio Lunae in umbram nC Tum
quidem continsit, quandoipsa verlatur in b, sed ubi porro
accesserit adspunctum, ubi perpendicularis ab n incidic in
orbitam. Ec cum distantia breristima Lunae ab umbra,
hoc est su, aequalis est lacicudini Ir, quam Luna habebar
1I; Sed tempus maximx obscurarionis conjunctionem in
orbita sequirur ranco interrallo, quanto opus cM, ur Luna
vero moru peraorer arcum ls, qui sequalis est ru arcui,
acerque vero est differentia incer Trianguli Sphxrici Rectan-
suli 25 Ir hyporenusam 25I e crus majus qer. Enimvero
in ilto Triangulo q5Ir dantur praecer rectum adr, I. an-
Sulus 25, qui in omni (y2rgia vera cst gradt. 4. Min. 585
lec. 30. 2. hyporenusa 25 l erad. 6. Min. 7. RCC. 12. COm.
Plementum scilicet Mocus veri Lacicudinis, qui Problemate
Octavo inventus fuerat sion. 5. grad. 23. min. 52. lec. 485
Luaericur r. anculus 25Ir, cui aequalis ett 25 _s; quem
eil. perpendicularis ex umbra ad orbiram constieuit cum
celiprica, eAtque is grad. 85. min. 3. 2. Crus q8r orad. 6.
Win. 5. sec. 50. Freo difterencia incer 95le qr elt min.
C. sec. 23. qui est arcus ls. Deinceps quaerendum, quanco
tempore Luna hunc arcum ls conficiat moru vero. Itaque
cum Anomalia Luna conquaca (Ign. 5. Srad. 13. Min. 435
sec. 39. ingredere Tabulam XXIV. ubi invenies morum
horarium Lunx in veris Spryoiis min. 33. Icc. 16. Ouare
dices per Reculam erium: Si min. 33. scc. 16. dane horam
unam, Cive sec. 3600; quid dabunt min. 1. sCC. 223 PrO-
deune in. 2. sec. 28. quod est incerrallum remporis, quo
maxima obscuracio conjunctionem in orbita sequirur. AIqu
lempus apparens conjunctionis verae in orbica sub Meridiano
Crilixe exar Tan. d. Ts hOr. 8. min. 58. sCC. 37. addici(que mir
2. sec. 28. Fc tempus maximae obseurationis d. T. HOr. 9.
min. T. sec. 5. inPrilia. Differentia Merisianorum Parilini
aique Frilici per Tabulam XL VII. est min. 16. Nam L.u-
ceria Pariliorum ab Uraniburso distat occidenrem versus min.
41. e Leovardia Frisia scrupulis 25. Ouare Lureria
le 26 scrupulis occidentalior; unde abjectis ex tempore
rdOC