The Whys and Wherefores of Navigation/Chapter III

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Chapter II: Nautical Astronomy

The Whys and Wherefores of Navigation
by Gershom Bradford II

Chapter II: Declination and Right Ascension, Including Precession

Chapter IV: Time

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76888The Whys and Wherefores of Navigation — Chapter II: Declination and Right Ascension, Including PrecessionGershom Bradford II

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Fig I. This diagram shows the successive positions of the earth for the Vernal Equinox (March 21st) due to the revolution of the axis and the consequent westward movement of the First Point of Aries.

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