Tables to Facilitate the Necessary Calculations in Nautical Astronomy ...: Designed to Enable Navigators to Determine Their Longitude from Lunar Observations ... Prefixed, an Explanation of the Tables ...The Author, 1822 - 340 pages |
Common terms and phrases
12 hours 500 Numbers adjustment angle APPARENT ALT APPARENT ALTITUDE apparent distance approximate arch ARGUMENT-NUMBER FROM TABLE azimuth Chro Chronometer coloured glass common logarithm comp computed latitude corresponding Cosecant Cosine Coversed daily variation degrees equation of second EXAMPLE find the Latitude greater altitude Greenwich half sine Half sum horizon glass index glass instrument latitude by account LOGARITHMIC SINES LOGARITHMIC VERSED longitude meridian altitude meridian distance method middle minutes Moon MOON'S CENTER Moon's Horizontal Parallax move the index natural number Nautical Almanac numbers from Table object observed altitude place of observation plane preceding proportional logarithm quadrant reduced refraction right ascension screw Secant Semidiameter in Altitude sexagesimal sextant side column sides of noon Star Sucoversed sum of numbers sum or difference SUN'S CEN SUN'S CENTER Sun's declination Suversed Table G taken telescope true altitude true distance tude watch zenith distance