The Major Writings of Ptolemy, Nicolaus Copernicus, Johannes Kepler |
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Page 534
... subtending unequal arcs in a semicircle are given , the chord subtending the arc whereby the greater arc exceeds the smaller is also given . [ 13 ] In the semicircle ABCD with diameter AD , let the straight lines AB and AC subtending ...
... subtending unequal arcs in a semicircle are given , the chord subtending the arc whereby the greater arc exceeds the smaller is also given . [ 13 ] In the semicircle ABCD with diameter AD , let the straight lines AB and AC subtending ...
Page 535
... subtending 12 ° -which is the difference between the arcs and it is equal to 20,905 parts of the diameter . FOURTH THEOREM Given a chord subtending any arc , the chord subtending half of the arc is also given . Let us describe the ...
... subtending 12 ° -which is the difference between the arcs and it is equal to 20,905 parts of the diameter . FOURTH THEOREM Given a chord subtending any arc , the chord subtending half of the arc is also given . Let us describe the ...
Page 570
... subtending twice the arc of the parallel circle whose radius is FK . And twice this arc is the difference between the equi- noctial day and the other day . And this is true because all the semicircles of which these lines are the common ...
... subtending twice the arc of the parallel circle whose radius is FK . And twice this arc is the difference between the equi- noctial day and the other day . And this is true because all the semicircles of which these lines are the common ...
Contents
Nicolaus Copernicus | 145 |
from Epitome of Copernican Astronomy | 841 |
from The Harmonies of the World | 1007 |
Copyright | |
Common terms and phrases
according Accordingly additosubtraction anomalistic anomaly apogee apparent movement apsis arc EG arc GH body Bull chord 2 arc circle about right column Copernicus Crab demonstrated diameter distance drawn Earth eastern eccentric circle eccentric's ecliptic Egyptian Egyptian calendar Egyptianwise elongation epicycle epicycle's centre equal equator equatorial hours fixed stars given greater greatest Hence Hipparchus horizon hypothesis hypt interval irregularity Jupiter latitude latitudinal libration longitude longitudinal lunar magnitude Mars mean movement mean position Mercury meridian meridian circle middle moon moon's move Nabonassar nearly northern observations opposite orbital circle parallax parallel passage perigee perpendicular planet planetary poles Ptolemy quadrant radius ratio regular movement revolution right angles right triangle Saturn Scorpion semicircle side solar solar days southern sphere spring equinox straight line subtending subtraction sun's syzygies things tion tropic Twins Venus Water Bearer