The Theory and Practice of Finding the Longitude at Sea Or Land: To which are Added, Various Methods of Determining the Latitude of a Place, and Variation of the Compass; with New Tables. By Andrew Mackay, ...J. Sewell, P. Elmsly, and J. Evans, 1793 |
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Σελίδα 13
... horizontal parallax , being 8.8128 , according to the determination of M. du Sejour , from the late tranfit of Venus . Vide Tracte Analytique , & c . tom . I. page 486 . the times of their rotation , yet from analogy it ( 13 )
... horizontal parallax , being 8.8128 , according to the determination of M. du Sejour , from the late tranfit of Venus . Vide Tracte Analytique , & c . tom . I. page 486 . the times of their rotation , yet from analogy it ( 13 )
Σελίδα 20
... horizontal parallax , and the femidiameters of the Sun and Moon , and therefore if the Moon's latitude exceeds this laft fum , no part of the Earth can be cclipfed , but if lefs , the eclipfe may be total or annular at one place ...
... horizontal parallax , and the femidiameters of the Sun and Moon , and therefore if the Moon's latitude exceeds this laft fum , no part of the Earth can be cclipfed , but if lefs , the eclipfe may be total or annular at one place ...
Σελίδα 21
... horizontal parallax , at noon and midnight , in page vII . and its diftance from the Sun and proper stars , at every third hour by the meridian of Greenwich , are contained in pages VIII . IX . X. XI . of the month . The The right ...
... horizontal parallax , at noon and midnight , in page vII . and its diftance from the Sun and proper stars , at every third hour by the meridian of Greenwich , are contained in pages VIII . IX . X. XI . of the month . The The right ...
Σελίδα 56
... Parallax . The femidia- meter and parallax however vanish , when the ... angle under which it would be seen when in the horizon , or from the cen- ter of the ... horizontal femidiameter of the Moon . This quantity is called the greatest ...
... Parallax . The femidia- meter and parallax however vanish , when the ... angle under which it would be seen when in the horizon , or from the cen- ter of the ... horizontal femidiameter of the Moon . This quantity is called the greatest ...
Σελίδα 62
... Parallax in Altitude . ILLUSTRATION . Let C , ( fig . 23. ) reprefent the center of the earth , A the place of an ... horizontal parallax of a planet is the angle which the Earth's femidiameter , when viewed directly , fubtends at that ...
... Parallax in Altitude . ILLUSTRATION . Let C , ( fig . 23. ) reprefent the center of the earth , A the place of an ... horizontal parallax of a planet is the angle which the Earth's femidiameter , when viewed directly , fubtends at that ...
Άλλες εκδόσεις - Προβολή όλων
The Theory and Practice of Finding the Longitude at Sea Or Land: To Which ... Andrew MacKay Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2015 |
The Theory And Practice Of Finding The Longitude At Sea Or Land Andrew MacKay Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2018 |
Συχνά εμφανιζόμενοι όροι και φράσεις
Aberdeen add the log adjuſtment alfo alſo anfwering angle apparent altitude apparent diſtance arc fecond arc firft arch Arcturus arifing azimuth becauſe cafe co-fecant co-fine co-tangent Co-verfed computing correction correfponding courſe degrees Diff dift divifion Earth ecliptic emerfion equal altitudes equation error fame fecant feen femidiameter fextant fhip fhould figns fince finding the Longitude firſt Fixed Star folar ftar fubtract given glaſs greateſt Greenwich half Hence horizon glafs horizontal parallax increaſe inftrument interfection interval laſt latitude lefs limb logarithm mean meaſured meridian method Moon moſt motion muſt Nautical Almanac neareſt neceffary nonagefimal noon obferved altitude object Obliq paffing place of obfervation planet pofition purpoſe quadrant reduced Reduced latitude refraction Rifing ſhip ſtar Sun's right afcenfion tangent teleſcope thefe theſe tion tranfit true altitude true diſtance true longitude tude uſed variation Verfed Verfed fine watch weft zenith diſtance ΙΟ