A manual for the use of candidates requiring a certificate of competency, as Mates and ordinary Masters1859 - Astronomy |
Other editions - View all
A Manual for the Use of Candidates Requiring a Certificate of Competency as ... Edward J Henessey No preview available - 2016 |
A Manual for the Use of Candidates Requiring a Certificate of Competency as ... Edward J. Henessey No preview available - 2017 |
Common terms and phrases
12 hours 20 feet 50m app A.M. at ship acct apply astronomical day Board of Trade celestial object Certificate of Competency chronometer circle circle of latitude common logs d h m decimal departure was taken diff difference of longitude dist Divide East ecliptic equator equinoctial error was determined examination EXAMPLES FOR EXERCISE fixed light Greenwich high water hour angle index error Knots 10ths light vessel Liverpool London Bridge Long LONGITUDE BY CHRONOMETER magnetic bearing Marine Board mean noon mean sun meridian altitude miles Multiply observation P.M. tide Parallax PARALLEL SAILING pass point of Aries required the difference Required the latitude Required the longi Required the longitude Required the variation revolving light right ascension ship in lat ship nearly ship swings Shipping Master star subtract Sun's mag sun's magnetic amplitude True Amp tude whole numbers zenith distance