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 20
... equation anfwering to any given mean anomaly is variable ; this equation is divided into two parts , the one called the Equation of the Center , and the other the Evection . The mean elliptic equation , when greateft , amounts to 6 ° 18 ...
... equation anfwering to any given mean anomaly is variable ; this equation is divided into two parts , the one called the Equation of the Center , and the other the Evection . The mean elliptic equation , when greateft , amounts to 6 ° 18 ...
Σελίδα 21
... Equation , which arifes from the Sun's action on the Moon , combined with the variation of the ex- centricity of the Earth's orbit ; the Moon's motion is accelerated , as this excentricity diminishes . According to M. de la Place , the ...
... Equation , which arifes from the Sun's action on the Moon , combined with the variation of the ex- centricity of the Earth's orbit ; the Moon's motion is accelerated , as this excentricity diminishes . According to M. de la Place , the ...
Σελίδα 67
... equations are deduced from his own obfervations , and from those of Dr Bradley and others . The above tables were delivered to Dr Bradley , to be examined ; who , having compared them with a great number of his own obfervations , was ...
... equations are deduced from his own obfervations , and from those of Dr Bradley and others . The above tables were delivered to Dr Bradley , to be examined ; who , having compared them with a great number of his own obfervations , was ...
Σελίδα 68
... equations , whofe true quantity could not be determined without proper obfervations . After making the neceffary correc- tions , it appeared , by the comparison of above eleven hundred ob- fervations taken fince the new inftruments were ...
... equations , whofe true quantity could not be determined without proper obfervations . After making the neceffary correc- tions , it appeared , by the comparison of above eleven hundred ob- fervations taken fince the new inftruments were ...
Σελίδα 74
... equations . Now , between the 20th of March and 21ft of June , and from the 22d of September to the 21ft of December , or while the Sun's declination is increafing , the equation answering to the fhip's longitude is to be added to , or ...
... equations . Now , between the 20th of March and 21ft of June , and from the 22d of September to the 21ft of December , or while the Sun's declination is increafing , the equation answering to the fhip's longitude is to be added to , or ...
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