The American practical navigator : being an epitome of navigation and nautical astronomy (1888)
Bowditch, Nathaniel, 1773-1838, United States. Navy Dept. Bureau of Navigation, Cooper, Philip Henry, 1844-1912 · Washington : Govt. Print. Off. · leaf 122
st terms be expressed inhours and decimal parts of an hour, then S = T + 9.8565 TT = S — 9.8296 S By which the reductions may be made. Art. SS?. To convert mean solar time at a given place into sidereal time. Let QMQ in Fig. 58 represent the celestial equator of whichP is the pole. QPQ, the… … 90 CONVERSION OP TIME. QM, the mean time., VM, the right ascension of the mean sun. Hence, QV = QM + VM, or Sid, time = mean time -\- R. A. of the mean stm — If the mean sun be east of the meridian at M then the mean time = 24 — MQ, QV = VM — MQ, or Sid. time = R. A. mean sun — (24 — mean time)= R.…
Navigation · Nautical astronomy
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