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 viii
... contained a complete fyftem of lunar obfervations , with an introductory account of this me- thod of finding the longitude at fea . It alfo contains a new method of finding the longitude of a fhip at fea , together with the apparent ...
... contained a complete fyftem of lunar obfervations , with an introductory account of this me- thod of finding the longitude at fea . It alfo contains a new method of finding the longitude of a fhip at fea , together with the apparent ...
Σελίδα 3
... of 99 feet each , he found B 2 * From obfervations made in different parts of the Earth , it would appear , that its gute is not that of a regular fpheroid . found that one degree contained 367196 English feet . However ( 3 )
... of 99 feet each , he found B 2 * From obfervations made in different parts of the Earth , it would appear , that its gute is not that of a regular fpheroid . found that one degree contained 367196 English feet . However ( 3 )
Σελίδα 4
... contained 367196 English feet . However , as Norwood paced some of his diftances , the above measure is there- fore only an approximation to the truth . In order to obtain a more accurate folution to this problem , menfurations have ...
... contained 367196 English feet . However , as Norwood paced some of his diftances , the above measure is there- fore only an approximation to the truth . In order to obtain a more accurate folution to this problem , menfurations have ...
Σελίδα 6
... contained between the firft meridian , and the meridian of that place ; and is ufually reckoned either eaft or weft , according as the given place is on the eaft or weft fide of the firft meridian , and there- fore cannot exceed 180 ...
... contained between the firft meridian , and the meridian of that place ; and is ufually reckoned either eaft or weft , according as the given place is on the eaft or weft fide of the firft meridian , and there- fore cannot exceed 180 ...
Σελίδα 7
... contained between its center and the true Horizon ; the Me- ridian Altitude is the diftance of the object from the true Horizon , when on the meridian of the place of observation ; when the obferv- ed altitude is corrected for the ...
... contained between its center and the true Horizon ; the Me- ridian Altitude is the diftance of the object from the true Horizon , when on the meridian of the place of observation ; when the obferv- ed altitude is corrected for the ...
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