206186GNOMONICES
SCHOLIVM.
ALIOMODO ſigna aſcendentia e@
11Conſtructi@
duatum figu-
rarum ex An-
drea Schonero@
per quas ſigna
aſcendentia de-
ſcribuntur.
145[Figure 145]
Andrea Schonero deſcribemus hac ratione.
Deſcribatur circulus A B C D, cuius cen-
trum E, & duæ diametri ad rectos angu-
los ſe ſecantes A C, B D. Sumantur de-
inde arcus A F, C G, maximæ declina-
tioni Solis æquales, & per F, G, ex B,
rectæ emiſſæ ſecent rectam AC, productam
2210 in H, I. Sumantur rurſus arcus D K, B L,
declinationi maximæ Solis duplicatæ æqua-
les, & per K, L, rectæ ex B, eductæ ſecent
eandem A C, productam in M, N. Atque
ex M, centro, interuallo M H, vel M I,
(Nam recta H I, in M, bifariam diuidi-
tur) circulus deſcribatur H B I D, qui per
B, D, tranſibit. I am diuiſo circulo A B-
C D, in partes 12. æquales, iungantur quæ-
libet bina puncta à D, vel B, æqualiter re-
3320 mota lineis rectis ſecantibus rectam B D,
in punctis, per quæ ſi ex N, rectæ ducantur
ſecantes circulum H B I D, in punctis, &
per hæc rurſus rectæ ex E, emittantur, erũt
hæ lineæ ſignorum, ita E D, ſit ♈; E C,
♋; E B, ♎ E A, ♑; & c. Per hanc
igitur figuram inueniemus intropicis ♋, &
♑, puncta, per quæ lineæ ſignorum aſcen
dentium duci debent, vt docebimus.
11Conſtructi@
duatum figu-
rarum ex An-
drea Schonero@
per quas ſigna
aſcendentia de-
ſcribuntur.
Deſcribatur circulus A B C D, cuius cen-
trum E, & duæ diametri ad rectos angu-
los ſe ſecantes A C, B D. Sumantur de-
inde arcus A F, C G, maximæ declina-
tioni Solis æquales, & per F, G, ex B,
rectæ emiſſæ ſecent rectam AC, productam
2210 in H, I. Sumantur rurſus arcus D K, B L,
declinationi maximæ Solis duplicatæ æqua-
les, & per K, L, rectæ ex B, eductæ ſecent
eandem A C, productam in M, N. Atque
ex M, centro, interuallo M H, vel M I,
(Nam recta H I, in M, bifariam diuidi-
tur) circulus deſcribatur H B I D, qui per
B, D, tranſibit. I am diuiſo circulo A B-
C D, in partes 12. æquales, iungantur quæ-
libet bina puncta à D, vel B, æqualiter re-
3320 mota lineis rectis ſecantibus rectam B D,
in punctis, per quæ ſi ex N, rectæ ducantur
ſecantes circulum H B I D, in punctis, &
per hæc rurſus rectæ ex E, emittantur, erũt
hæ lineæ ſignorum, ita E D, ſit ♈; E C,
♋; E B, ♎ E A, ♑; & c. Per hanc
igitur figuram inueniemus intropicis ♋, &
♑, puncta, per quæ lineæ ſignorum aſcen
dentium duci debent, vt docebimus.
DESCRIBATVR rurſum circulus
4430 A B C D, cuius centrum E, & duæ diame-
tri ſeſe ad angulos rectos ſecãtes A C, B D,
146[Figure 146]55406650
4430 A B C D, cuius centrum E, & duæ diame-
tri ſeſe ad angulos rectos ſecãtes A C, B D,