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 |
Αναζήτηση στο βιβλίο
Αποτελέσματα 1 - 5 από τα 65.
Σελίδα 2
... angles , it is a circle . Now , if the Earth was an extended plane , the meridian zenith diftance of any given fixed star would be the fame in all places of the Earth , by lemma 1ft ; but it is found to be variable , and in fuch a ...
... angles , it is a circle . Now , if the Earth was an extended plane , the meridian zenith diftance of any given fixed star would be the fame in all places of the Earth , by lemma 1ft ; but it is found to be variable , and in fuch a ...
Σελίδα 7
... angles . The ALTITUDE of any celeftial body , is that portion of a Vertical , which is 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 ...
... angles . The ALTITUDE of any celeftial body , is that portion of a Vertical , which is 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 ...
Σελίδα 14
... angle contained between lines drawn from the center of the earth to the centers of the fun and planet . Now , if the planet be fuppofed to move forward according to the order of the figns , with the excefs of its velocity above the ...
... angle contained between lines drawn from the center of the earth to the centers of the fun and planet . Now , if the planet be fuppofed to move forward according to the order of the figns , with the excefs of its velocity above the ...
Σελίδα 15
... angle FSI is the Heliocentric Latitude , and FAI the geocentric latitude of the planet ; SI is called the Curtate Distance , and the difference between SF and SI , the Curtation . The heliocentric and geocentric longitudes and latitudes ...
... angle FSI is the Heliocentric Latitude , and FAI the geocentric latitude of the planet ; SI is called the Curtate Distance , and the difference between SF and SI , the Curtation . The heliocentric and geocentric longitudes and latitudes ...
Σελίδα 16
... angle ; and the distance of the planet from the Earth is equal to the cotangent of that angle , the radius being unity . However , these being on the affumption of a circular orbit , will deviate a little from the truth . Kepler , by ...
... angle ; and the distance of the planet from the Earth is equal to the cotangent of that angle , the radius being unity . However , these being on the affumption of a circular orbit , will deviate a little from the truth . Kepler , by ...
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