Navigation and Nautical Astronomy1861 |
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Page v
... pass the meridian the next after a given time • XX . Given sidereal time to find mean time XXI . Given hour angle to find ship mean time XXII . To find at what time any heavenly body will pass the meridian Parallax Augmentation of the ...
... pass the meridian the next after a given time • XX . Given sidereal time to find mean time XXI . Given hour angle to find ship mean time XXII . To find at what time any heavenly body will pass the meridian Parallax Augmentation of the ...
Page 57
... meridian passes are called the north and south points . A circle of altitude at right angles to the meridian is called the prime vertical : thus w z E is the prime vertical . This last circle cuts the horizon in two points called the ...
... meridian passes are called the north and south points . A circle of altitude at right angles to the meridian is called the prime vertical : thus w z E is the prime vertical . This last circle cuts the horizon in two points called the ...
Page 93
... meridian the next after 4h 42m P.M. on Feb. 24 . Sometimes it is required to find what principal stars will pass the meridian between certain convenient hours for observing their transits : as , for instance , between 8h and 11h P.M. To ...
... meridian the next after 4h 42m P.M. on Feb. 24 . Sometimes it is required to find what principal stars will pass the meridian between certain convenient hours for observing their transits : as , for instance , between 8h and 11h P.M. To ...
Page 94
... pass the meridian of a ship in long . 40 ° E. , between 8h and 10h P.M. mean time on Nov. 20 , 1853 ? Ans . , From a Andromeda to a Arietis . ( 69. ) What bright star will pass the meridian of a ship in long . 30 ° W. the first after ...
... pass the meridian of a ship in long . 40 ° E. , between 8h and 10h P.M. mean time on Nov. 20 , 1853 ? Ans . , From a Andromeda to a Arietis . ( 69. ) What bright star will pass the meridian of a ship in long . 30 ° W. the first after ...
Page 100
... meridian , required mean time at the place . Ans . , 16h 11m 6s . ( 76. ) June 15 , 1853 , at 10h 10m P.M. , supposed mean time nearly , in long ... meridian 100 PRELIMINARY RULES To find at what time any heavenly body will pass meridian.
... meridian , required mean time at the place . Ans . , 16h 11m 6s . ( 76. ) June 15 , 1853 , at 10h 10m P.M. , supposed mean time nearly , in long ... meridian 100 PRELIMINARY RULES To find at what time any heavenly body will pass meridian.
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Common terms and phrases
24 hours altitude for index apparent altitude April 27 ascension mean sun astronomical celestial concave celestial equator chro chronometer showed colatitude compass course course and distance decl deviation diff difference of latitude east ecliptic Elements from Nautical find the latitude Greenwich date Greenwich mean noon haversines heavenly body height of eye horizontal parallax hour angle Index cor index correction July June latitude and longitude mean solar mean time nearly miles moon Moon's declination moon's semidiameter Nautical Almanac observed altitude observed meridian altitude P.M. mean Parallel Sailing pass the meridian point of Aries polar distance pole proportional logarithm refraction required the latitude required the longitude required the true Right asc Right ascension mean sea 20 feet ship mean ship's head sidereal spectator star subtract Sun's declination sun's L. L. sun's lower limb true altitude true bearing true course true distance versine zenith distance