1ſcending towards the right, in the point F. What I have
therto ſaid, being underſtood, I believe that there remains no
difficulty in conceiving how ſrom the paſſing of the terminator of
the Solar Hemiſpheres by the Poles of the Suns converſion, or
neer or far from the ſame, do ariſe all the differences in the
rent courſes of the ſpots; ſo that by how much the more thoſe Poles
ſhall be remote from the ſaid terminator, by ſo much the more ſhall
thoſe courſes be incurvated, and leſſe oblique; whereupon at
the ſame diſtance, that is, when thoſe Poles are in the ſection of
the Meridian, the incurvation is reduced to the greateſt, but the
obliquity to the leaſt, that is to Æquilibrium, as the ſecond of
theſe three laſt figures [viz. Fig. 5.] demonſtrateth. On the
contrary, when the Poles are in the terminator, as the firſt of
theſe three figures [viz. Fig. 4.] ſheweth the inclination is at
the greateſt, but the incurvation at the leaſt, and reduced to
rectitude. The terminator departing from the Poles, the curvity
begins to grow ſenſible, the obliquity all the way encreaſing,
and the inclination growing leſſer.
therto ſaid, being underſtood, I believe that there remains no
difficulty in conceiving how ſrom the paſſing of the terminator of
the Solar Hemiſpheres by the Poles of the Suns converſion, or
neer or far from the ſame, do ariſe all the differences in the
rent courſes of the ſpots; ſo that by how much the more thoſe Poles
ſhall be remote from the ſaid terminator, by ſo much the more ſhall
thoſe courſes be incurvated, and leſſe oblique; whereupon at
the ſame diſtance, that is, when thoſe Poles are in the ſection of
the Meridian, the incurvation is reduced to the greateſt, but the
obliquity to the leaſt, that is to Æquilibrium, as the ſecond of
theſe three laſt figures [viz. Fig. 5.] demonſtrateth. On the
contrary, when the Poles are in the terminator, as the firſt of
theſe three figures [viz. Fig. 4.] ſheweth the inclination is at
the greateſt, but the incurvation at the leaſt, and reduced to
rectitude. The terminator departing from the Poles, the curvity
begins to grow ſenſible, the obliquity all the way encreaſing,
and the inclination growing leſſer.
The firſt
cident to be
ved in the motion
of the Solar ſpots;
and conſequently
all the reſt
ned.
cident to be
ved in the motion
of the Solar ſpots;
and conſequently
all the reſt
ned.
Theſe are thoſe admirable and extravagant mutations, that my
Gueſt told me would from time to time appear in the progreſſes
of the Solar ſpots, if ſo be it ſhould be true that the annual
tion belonged to the Earth, and that the Sun being conſtituted
in the centre of the Ecliptick, were revolved in it ſelf upon an
Axis, not erect, but inclined to the Plane of the ſaid
tick.
Gueſt told me would from time to time appear in the progreſſes
of the Solar ſpots, if ſo be it ſhould be true that the annual
tion belonged to the Earth, and that the Sun being conſtituted
in the centre of the Ecliptick, were revolved in it ſelf upon an
Axis, not erect, but inclined to the Plane of the ſaid
tick.
SAGR. I do now very well apprehend theſe conſequences,
and believe that they will be better imprinted in my fancy, when
I ſhall come to reflect upon them, accommodating a Globe to
thoſe inclinations, and then beholding them from ſeveral
ces. It now remains that you tell us what followed afterwards
touching the event of theſe imaginary
and believe that they will be better imprinted in my fancy, when
I ſhall come to reflect upon them, accommodating a Globe to
thoſe inclinations, and then beholding them from ſeveral
ces. It now remains that you tell us what followed afterwards
touching the event of theſe imaginary
The events
ing obſerved, were
anſwerable to the
predictions.
ing obſerved, were
anſwerable to the
predictions.
SALV. It came to paſſe thereupon, that continuing many
veral moneths to make moſt accurate obſervations, noting down
with great exactneſſe the courſes or tranſitions of ſundry ſpots at
divers times of the year, we found the events punctually to
reſpond to the predictions.
veral moneths to make moſt accurate obſervations, noting down
with great exactneſſe the courſes or tranſitions of ſundry ſpots at
divers times of the year, we found the events punctually to
reſpond to the predictions.
SAGR. Simplicius, if this which Salviatus ſaith be true; (nor
can we diſtruſt him upon his word) the Ptolomeans and
teleans hadneed of ſolid arguments, ſtrong conjectures, and
well grounded experiments to counterpoiſe an objection of ſo
much weight, and to ſupport their opinion from its final
throw.
can we diſtruſt him upon his word) the Ptolomeans and
teleans hadneed of ſolid arguments, ſtrong conjectures, and
well grounded experiments to counterpoiſe an objection of ſo
much weight, and to ſupport their opinion from its final
throw.
SIMP. Fair and ſoftly good Sir, for haply you may not yet
be got ſo far as you perſwade your ſelf you are gone. And
though I am not an abſolute maſter of the ſubject of that
be got ſo far as you perſwade your ſelf you are gone. And
though I am not an abſolute maſter of the ſubject of that