A new treatise on the practice of navigation at sea : containing all the details necessary to enable the mariner to become a good practical navigator. (1902)
Thoms, William · New York : Printed for the author and sold by John Bliss & Co · leaf 97
,and the Star vrill be seen on the Horizon. On referring to Figure 4, the time at which the Stars pass the Meridian is easily computed by subtrael*ing the Suns R. Ascension from the Stars R. Aso«n.<«ion, (increasing the latter by 24 hours, if necessary),will be the apparent time of its Meridian… … DEFINITIONS. r>T CORRECTIONS OF THE ALTITUDES OF THE HEAVENLY BODIES ORSER\ED AT SEA Dip of the Horizon is the Angle through which the Sea Horizon appears depressed, in consequence oJ theelevation of the spectators eye above the Sea level. Suppose the observers eye to be at e (in the figure for…
Navigation · Nautical astronomy
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