Salusbury, Thomas
,
Mathematical collections and translations (Tome I)
,
1667
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1 - 30
31 - 60
61 - 90
91 - 120
121 - 150
151 - 180
181 - 210
211 - 240
241 - 270
271 - 300
301 - 330
331 - 360
361 - 390
391 - 420
421 - 450
451 - 480
481 - 510
511 - 540
541 - 570
571 - 600
601 - 630
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040/01/295.jpg
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us ſee whether by withdrawing it 20. minutes onely, it will riſe
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to the height of 32. ſemidiameters: See the ſhort and true
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tion. </
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<
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>Multiply the ſine of the angle B D C, by the ſine of the
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chord B D, and divide the product, the five laſt figures being cut
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off by the ſine of the Parallax, and the quotient will be 28.
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midiameters, and an half, ſo that though you make a correction
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of 4
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gr. </
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<
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>22 min. </
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<
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>30 ſec.
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taken from 4
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gr. </
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<
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>42 min. </
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<
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>30 ſec.
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it ſhall
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not elevate the ſtar to the altitude of 32. ſemidiameters, which
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correction for
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Simplicius
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his underſtanding it, is of 262. minutes,
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and an half.</
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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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gr.
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m.
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</
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ſec.
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</
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</
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<
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<
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<
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type
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Hainzelius
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type
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</
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<
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>Pole</
cell
>
<
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>48</
cell
>
<
cell
>32</
cell
>
<
cell
>----*</
cell
>
<
cell
>76</
cell
>
<
cell
>34</
cell
>
<
cell
>30</
cell
>
</
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>
<
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>
<
cell
>
<
emph
type
="
italics
"/>
Maurolicus
<
emph.end
type
="
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"/>
</
cell
>
<
cell
>Pole</
cell
>
<
cell
>38</
cell
>
<
cell
>30</
cell
>
<
cell
>----*</
cell
>
<
cell
>62</
cell
>
<
cell
>00</
cell
>
<
cell
>00</
cell
>
</
row
>
<
row
>
<
cell
/>
<
cell
/>
<
cell
>9</
cell
>
<
cell
>52</
cell
>
<
cell
/>
<
cell
>14</
cell
>
<
cell
>34</
cell
>
<
cell
>30</
cell
>
</
row
>
<
row
>
<
cell
/>
<
cell
/>
<
cell
/>
<
cell
/>
<
cell
/>
<
cell
>9</
cell
>
<
cell
>52</
cell
>
<
cell
>00</
cell
>
</
row
>
<
row
>
<
cell
/>
<
cell
/>
<
cell
/>
<
cell
/>
<
cell
>Parallax</
cell
>
<
cell
>4</
cell
>
<
cell
>42</
cell
>
<
cell
>30</
cell
>
</
row
>
</
table
>
<
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>
<
table.target
id
="
table31
"/>
<
row
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<
cell
/>
<
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/>
<
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>
<
emph
type
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"/>
gr.
<
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type
="
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"/>
</
cell
>
<
cell
>
<
emph
type
="
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"/>
m.
<
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type
="
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</
cell
>
<
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>
<
emph
type
="
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"/>
ſec.
<
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type
="
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</
cell
>
<
cell
/>
<
cell
/>
</
row
>
<
row
>
<
cell
/>
<
cell
>B A D</
cell
>
<
cell
>9</
cell
>
<
cell
>52</
cell
>
<
cell
>00</
cell
>
<
cell
>Chord</
cell
>
<
cell
>17200</
cell
>
</
row
>
<
row
>
<
cell
>Angles</
cell
>
<
cell
>B D C</
cell
>
<
cell
>108</
cell
>
<
cell
>21</
cell
>
<
cell
>30</
cell
>
<
cell
>Sine</
cell
>
<
cell
>94910</
cell
>
</
row
>
<
row
>
<
cell
/>
<
cell
>B C D</
cell
>
<
cell
>0</
cell
>
<
cell
>20</
cell
>
<
cell
>00</
cell
>
<
cell
>Sine</
cell
>
<
cell
>582</
cell
>
</
row
>
</
table
>
<
table
>
<
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id
="
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"/>
<
row
>
<
cell
/>
<
cell
>94910</
cell
>
<
cell
/>
</
row
>
<
row
>
<
cell
/>
<
cell
>17200</
cell
>
<
cell
/>
</
row
>
<
row
>
<
cell
/>
<
cell
>18982000</
cell
>
<
cell
/>
</
row
>
<
row
>
<
cell
/>
<
cell
>66437</
cell
>
<
cell
/>
</
row
>
<
row
>
<
cell
/>
<
cell
>9491</
cell
>
<
cell
/>
</
row
>
<
row
>
<
cell
/>
<
cell
>28</
cell
>
<
cell
/>
</
row
>
<
row
>
<
cell
>582</
cell
>
<
cell
>16324</
cell
>
<
cell
>52000</
cell
>
</
row
>
<
row
>
<
cell
/>
<
cell
>4688</
cell
>
<
cell
/>
</
row
>
<
row
>
<
cell
/>
<
cell
>2</
cell
>
<
cell
/>
</
row
>
</
table
>
<
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<
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>In the ſecond operation made upon the obſervations of
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zelius,
<
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and
<
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type
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"/>
Sculerus,
<
emph.end
type
="
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"/>
with the Parallax of 0
<
emph
type
="
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"/>
gr. </
s
>
<
s
>8 min. </
s
>
<
s
>30 ſec.
<
emph.end
type
="
italics
"/>
<
lb
/>
the ſtar is found in the height of 25. ſemidiameters or
<
lb
/>
bouts, as may be ſeen in the ſubſequent
<
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/>
<
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</
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</
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</
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</
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