A Self-instructor in Navigation and Nautical Astronomy,: For the Local Marine Board Examination, Home Trade and Foreign, Ordinary and Extra; Giving Complete Solutions of Every Class of Examples, with Numerous Examples for Practice ...
J. Imray, 1863 - Nautical astronomy - 340 pages
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a.m. apparent a.m. at ship altitude of sun's April Azimuth bearing chart Charter-party Chron Chronometer circle cloth for Captains'use coast compass course correction cosec Course and Distance Daily Variation decimal Decl Declination deviation Dist dunnage East equator error of sextant Examples for Practice eye 18 feet eye 20 feet find the Diff find the Latitude find the Longitude find the true find the Variation Fixed Light Greenwich Date High Water Horizon Hour Angle index error Island Light,—every Lightvessel Logarithm M. T. at Greenwich miles minutes Moon's Naut Nautical Navigation noon North observed altitude observed meridian altitude p.m. Mean Parallax parallel points port Prime Vertical Right Ascension sails Semid Sept Set and Drift Ship Date ship from Lat ship's subtract True Alt true course true Latitude vessel visible West Zenith Distance