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 64.
Σελίδα v
... proper courfe , by ftorms , contrary winds , currents , & c . that after all reasonable allowance is made for the errors arising from these causes , the place of the ship by account is very seldom found to agree with the real place , or ...
... proper courfe , by ftorms , contrary winds , currents , & c . that after all reasonable allowance is made for the errors arising from these causes , the place of the ship by account is very seldom found to agree with the real place , or ...
Σελίδα viii
... proper knowledge of the fubject . Book fecond contains the description , rectification , and use of the Quadrant , Sextant , and Circular Inftrument , in their prefent improved ftate - alfo , an account of the corrections to be applied ...
... proper knowledge of the fubject . Book fecond contains the description , rectification , and use of the Quadrant , Sextant , and Circular Inftrument , in their prefent improved ftate - alfo , an account of the corrections to be applied ...
Σελίδα 10
... proper name to each star , it has therefore been cuftomary to mark the stars of each conftellation with the letters of the Greek alphabet , in fuch a man- ner , that the first letter is prefixed to the brightest ftar , the second letter ...
... proper name to each star , it has therefore been cuftomary to mark the stars of each conftellation with the letters of the Greek alphabet , in fuch a man- ner , that the first letter is prefixed to the brightest ftar , the second letter ...
Σελίδα 11
... PROPER MOTION of the ftars . The proper motion of Sirius , Caftor , Procyon , Pollux , Regulus , Arcturus , and a Aquila , in 100 years , in right afcenfion ... proper proper telescope . Dr Herfchel has detected about 2000 nebule ( 11 )
... PROPER MOTION of the ftars . The proper motion of Sirius , Caftor , Procyon , Pollux , Regulus , Arcturus , and a Aquila , in 100 years , in right afcenfion ... proper proper telescope . Dr Herfchel has detected about 2000 nebule ( 11 )
Σελίδα 12
... proper telescope . Dr Herfchel has detected about 2000 nebule , and nearly as many double stars . The moon's orbit being contained within the zodiac , its motion is very rapid with refpect to the fun , and thofe ftars fituated in that ...
... proper telescope . Dr Herfchel has detected about 2000 nebule , and nearly as many double stars . The moon's orbit being contained within the zodiac , its motion is very rapid with refpect to the fun , and thofe ftars fituated in that ...
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