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 18
... noon , and when at F , at midnight ; therefore , while the moon is in the part ACF of its orbit , it comes to the meridian between noon and midnight , and the western part of the moon's difc is enlightened . During the time the moon is ...
... noon , and when at F , at midnight ; therefore , while the moon is in the part ACF of its orbit , it comes to the meridian between noon and midnight , and the western part of the moon's difc is enlightened . During the time the moon is ...
Σελίδα 21
... noon and midnight , are contained in page vi . of the month ; its femidiameter and 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 ...
... noon and midnight , are contained in page vi . of the month ; its femidiameter and 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 ...
Σελίδα 56
... noon of every fixth day , and that of the Moon in page vII . to the time of noon and midnight , by the meridian of Greenwich . These femidiameters may be reduced to any intermediate time , and to any other meridian , by proportion . The ...
... noon of every fixth day , and that of the Moon in page vII . to the time of noon and midnight , by the meridian of Greenwich . These femidiameters may be reduced to any intermediate time , and to any other meridian , by proportion . The ...
Σελίδα 73
... noon , to which the longitude of the place in time is to be applied by addi- tion or fubtraction , according as it is west or east , and the fum or difference will be the correfponding time at Greenwich . EXAMPLES . I. What is the time ...
... noon , to which the longitude of the place in time is to be applied by addi- tion or fubtraction , according as it is west or east , and the fum or difference will be the correfponding time at Greenwich . EXAMPLES . I. What is the time ...
Σελίδα 74
... noon of the given day , and convert the feconds into tenths of a mi- nute , by dividing by 6 ; then enter table xi . with the declination at the top , and take out the equations anfwering to the given longi- tude , and time from noon ...
... noon of the given day , and convert the feconds into tenths of a mi- nute , by dividing by 6 ; then enter table xi . with the declination at the top , and take out the equations anfwering to the given longi- tude , and time from noon ...
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