Astronomia Britannica exhibiting the doctrine of the sphere, and theory of the planets decimally by trigonometry, and by tables : fitted for the meridian of London ... / by John Newton ...
About this Item
Title
Astronomia Britannica exhibiting the doctrine of the sphere, and theory of the planets decimally by trigonometry, and by tables : fitted for the meridian of London ... / by John Newton ...
Author
Newton, John, 1622-1678.
Publication
London :: Printed for the author by R. and W. Leybourn, and are to be sold by Thomas Piercepoint ...,
1657.
Rights/Permissions
To the extent possible under law, the Text Creation Partnership has waived all copyright and related or neighboring rights to this keyboarded and encoded edition of the work described above, according to the terms of the CC0 1.0 Public Domain Dedication (http://creativecommons.org/publicdomain/zero/1.0/). This waiver does not extend to any page images or other supplementary files associated with this work, which may be protected by copyright or other license restrictions. Please go to http://www.textcreationpartnership.org/ for more information.
Subject terms
Astronomy -- Early works to 1800.
Planetary theory -- Early works to 1800.
Astronomy -- Mathematics -- Early works to 1800.
Link to this Item
http://name.umdl.umich.edu/A52255.0001.001
Cite this Item
"Astronomia Britannica exhibiting the doctrine of the sphere, and theory of the planets decimally by trigonometry, and by tables : fitted for the meridian of London ... / by John Newton ..." In the digital collection Early English Books Online. https://name.umdl.umich.edu/A52255.0001.001. University of Michigan Library Digital Collections. Accessed June 4, 2024.
Pages
CHAP. 15. The Poles elevation, with the Suns Altitude and Declination gi∣ven, to find his Azimnth.
IN the oblique angled sphaericall triangle G H F, in the second Dia∣gram of the 12 Chapter, we have known H F the complement of the Suns Declination. 2 The side G F the complement of the poles ele∣vation.
descriptionPage 27
3 The side H G the complement of the Suns altitude, to find H G F.
••. The side F H
67. 97090
2. The side G F
38. 46667
3. The side H G
44. 54111
Summe
150. 97868
Halfe summe
75. 48934
Sine of G F
38. 46667 co. ar.
0. 2061682
Sine of H G
44. 54111 co. ar.
0. 1540214
Diff. G F ½ sum
37. 02267
9. 7796909
Diff. H G ½ sum
30. 94823
9. 7111855
Quadrat of the Sine of ½ the angle
19. 8510560
Half is the Sine of
57. 39644
9. 9255280
whose double 104. 79288 is the Suns Azimuth from the North, and the complement thereof 75. 20712 is the Suns Azimuth from the South.
email
Do you have questions about this content? Need to report a problem?
Please contact us.