The Nautical Almanac and Astronomical Ephemeris for the Year ...order of the Lords Commissioners of the Admiralty, 1779 - Nautical almanacs |
Other editions - View all
Common terms and phrases
12 Hours 21 Hours 9 Hours Aftronomer Aldeba alfo Altitude Antares Aquila Arietis Auriga Board of Longitude Calculations Center from Sun computed conftructed D's Age D's cent D's Center Days H. M. S. Days Declination diff Diſcovery Diſtance Distances of D's Eclipfes of Jupiter's Emerfions Ephemeris faid Commiffioners fame fecond Difference ferve fhall fignifies firft firſt fubftracting fufficient Geocen gitude at Midnight gitude at Noon Greenwich H. M. S. Days H. M. S. Immerfions Increaſe invifible Latitude Longitude at Sea Lunar Tables Merid Midn Month Moon's Lon Moon's Longitude NAUTICAL ALMANAC neceffary NEVIL MASKELYNE obferved paffing the Meridian Parallax Perfon or Perfons Phafes Planets Pleiad Pollux Proport publiſhed Regulus requifite Reward or Sum Right Afc right Afcenfion SATELLITES of JUPITER Semid Semidiameter ſhall Spica Stars Names Stars Noon Stars weft Sun's Longitude Sunday after Trinity Teleſcope thefe TOBIA MAYER tric Lon tude uſeful vended Week ΙΟ
Popular passages
Page 153 - Part of their Orbits, or neareft to the Earth, when they .are marked to the right Hand or Weft of Jupiter receding from him, or to the left or Eaft of Jupiter approaching him.
Page 149 - Month, are set down to every Three Hours of apparent Time by the Meridian of Greenwich, and are...
Page 150 - Star refpeetively, the Mean of the Refults is to be taken as probably approaching neareft to the true Longitude. In particular the Moon's...
Page 150 - JEphemeris, always within a Degree, and generally much nearer, yet it will conduce to ftill greater Accuracy, if the Obferver takes the Diftance of the Moon from Two Stars, or the Sun and a Star, or, when the Moon is between 90 and 120...