Salusbury, Thomas
,
Mathematical collections and translations (Tome I)
,
1667
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<
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<
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>And this way alſo there will come forth 59 5113294/5800000</
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>And ſo many ſemidiameters are contained in the line B C, to
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which one being added for the line A B, we ſhall have little leſſe
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than 61. ſemidiameters for the two lines A B C; and therefore
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the right diſtance from the centre A, to the Star C, ſhall be more
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than 60. ſemidiameters, and therefore it is ſuperiour to the Moon,
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according to
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Ptolomy,
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more than 27. ſemidiameters, and according
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to
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Copernicus,
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more than 8. ſuppoſing that the diſtance of the
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Moon from the centre of the Earth by
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Copernicus
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his account is
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what the Author maketh it, 52 ſemidiameters. </
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>With this ſame
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working, I find by the obſervations of
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Camerarius,
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and of
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ſius,
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that the Star was ſituate in that ſame diſtance, to wit,
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what more than 60. ſemidiameters. </
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>Theſe are the obſervations,
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and theſe following next after them the
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gr.
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m.
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gr.
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m.
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<
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>Altitude of
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Camerar.
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<
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>52</
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<
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>24</
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<
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>Altitude of</
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>24</
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<
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>28</
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<
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<
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>the Pole
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Munoſ.
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<
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>39</
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<
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>30</
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<
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>the Star</
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<
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>11</
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<
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>30</
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<
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>Differences of the</
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>12</
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<
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>54</
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>Differences</
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<
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>12</
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<
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>58</
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<
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>Polar Altitudes</
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<
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<
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>of the alt. of *</
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<
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>12</
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<
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>54</
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<
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<
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>Difference of Parallaxes</
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<
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<
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>00</
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<
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>04. ang. BCD.</
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<
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gr.
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</
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<
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m.
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<
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<
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>B A D</
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<
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>12</
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<
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>54</
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<
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>and its chord or ſubtenſe 22466.</
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</
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<
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<
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>Angles</
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<
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>B D C</
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<
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>161</
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<
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>59</
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<
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>Sines</
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<
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>30930</
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<
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<
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<
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>B C D</
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>
<
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>00</
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<
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>04</
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<
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/>
<
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>116</
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The Golden Rule.
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