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
... given without demonftrations , and this is parti- cularly the case with most books on the subject of navi- gation , probably because feafaring people in general are very much indifferent as to the rationale of any rule given for for ...
... given without demonftrations , and this is parti- cularly the case with most books on the subject of navi- gation , probably because feafaring people in general are very much indifferent as to the rationale of any rule given for for ...
Σελίδα 2
... 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 manner , that the difference of the meridian altitudes of the fame ftar is proportional to the intercepted ...
... 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 manner , that the difference of the meridian altitudes of the fame ftar is proportional to the intercepted ...
Σελίδα 5
... given place . It is either North or South , according as the given place is in the Northern or Southern Hemifphere , and therefore cannot exceed 90 ° . The PARALLEL of LATITUDE of any place , is a circle paffing thro ' that place ...
... given place . It is either North or South , according as the given place is in the Northern or Southern Hemifphere , and therefore cannot exceed 90 ° . The PARALLEL of LATITUDE of any place , is a circle paffing thro ' that place ...
Σελίδα 6
... given place is on the eaft or weft fide of the firft meridian , and there- fore cannot exceed 180 ° . The DIFFERENCE of LONGITUDE between two places , is the inter- cepted arch of the equator between the meridians of thofe places , and ...
... given place is on the eaft or weft fide of the firft meridian , and there- fore cannot exceed 180 ° . The DIFFERENCE of LONGITUDE between two places , is the inter- cepted arch of the equator between the meridians of thofe places , and ...
Σελίδα 21
... given time is before 1700. According to M. de Lambre's comparison of modern obfervations , the mean fecular motion of the Moon , as given by M. Mayer , is too great by 25 " . In Mayer's laft tables , the fecular equa- tion of the Moon ...
... given time is before 1700. According to M. de Lambre's comparison of modern obfervations , the mean fecular motion of the Moon , as given by M. Mayer , is too great by 25 " . In Mayer's laft tables , the fecular equa- tion of the Moon ...
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