1ſeen in that ſame note obſerved the ſtar in the polar altitude of 55
degrees and 58 mi. pri. And the polar altitude of the Landgrave
was 51 degrees and 18 mi. pri. The altitude of the ſtar in the
ridian taken by Tycho was 27 degrees 45 mi. pri. The
grave found its altitude 23 degrees 3 mi. pri. The which altitudes
are theſe noted here, as you
gr.m.gr.m.Tycho Pole5558* 2745Landgr. Pole5118* 233degrees and 58 mi. pri. And the polar altitude of the Landgrave
was 51 degrees and 18 mi. pri. The altitude of the ſtar in the
ridian taken by Tycho was 27 degrees 45 mi. pri. The
grave found its altitude 23 degrees 3 mi. pri. The which altitudes
are theſe noted here, as you
This done, ſubſtract the leſſe from the greater, and there remains
theſe differences here
gr.m.440442Parall.2theſe differences here
Where the difference of the poles altitudes 4 gr. 4 mi. pr.
is leſſe than the difference of the altitudes of the Star 4 gr. 42 mi.
pr. and therefore we have the difference of parallaxes, 0 gr. 2 mi.
pri. Theſe things being found, take the Authours own figure
[Fig. 2.] in which the point B is the ſtation of the Landgrave,
D the ſtation of Tycho, C the place of the ſtar, A the centre
of the Earth, A B E the vertical line of the Landgrave, A D F
of Tycho, and the angle B C D the difference of Parallaxes. And
is leſſe than the difference of the altitudes of the Star 4 gr. 42 mi.
pr. and therefore we have the difference of parallaxes, 0 gr. 2 mi.
pri. Theſe things being found, take the Authours own figure
[Fig. 2.] in which the point B is the ſtation of the Landgrave,
D the ſtation of Tycho, C the place of the ſtar, A the centre
of the Earth, A B E the vertical line of the Landgrave, A D F
of Tycho, and the angle B C D the difference of Parallaxes. And