Sed quærendum
ſupererat, quo
ta totius circuli
maximi pars eſ
ſent ſtadia 300.
Conſtituto ita
que terræ centro
in C, & oculo
obſeruatoris iņ
O, ductum in
telligebam ex cen
tro S radium S
OC, qui cum̨
radio OT Solem
contingente da
bat angulum S
OT ſemidiametrum apparentem Solis Apo
gæi gr.o.m.15., vt placet Tychoni, Longo
montano, Magino, Keplero. Item ex C du
ctus intelligatur radius Solem tangens, qui
terræ circulum maximum ſecat in K; & eſt
OK ſemiſsis ſpatij, quod caret vmbris meri
dianis die ſolſtitij æſtiui; continet autem ſta
ſupererat, quo
ta totius circuli
maximi pars eſ
ſent ſtadia 300.
Conſtituto ita
que terræ centro
in C, & oculo
obſeruatoris iņ
O, ductum in
telligebam ex cen
tro S radium S
OC, qui cum̨
radio OT Solem
contingente da
bat angulum S
OT ſemidiametrum apparentem Solis Apo
gæi gr.o.m.15., vt placet Tychoni, Longo
montano, Magino, Keplero. Item ex C du
ctus intelligatur radius Solem tangens, qui
terræ circulum maximum ſecat in K; & eſt
OK ſemiſsis ſpatij, quod caret vmbris meri
dianis die ſolſtitij æſtiui; continet autem ſta