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Volume 43 - January 1990

Contents

Page 3 of 4

Research Article

  • Position Fixing in a Fast Moving Ship by Culmination of a Celestial Body

  • Matti A. Ranta
  • Published online by Cambridge University Press:
    21 October 2009, pp. 276-286

  • A well-known navigational method is to determine position through observation of the highest altitude of the Sun at noon. This procedure is based tacitly on the assumption that the observed altitude is a symmetrical function of time about the highest point which appears thus in the meridian. In order to examine the accuracy of this approximation for a fast moving ship, let us consider the situation in more detail. The equations will be formulated using the standard functions in a modern pocket calculator and its application modules.

Forum

  • Computation of an Astronomical Running Fix

  • R. Williams
  • Published online by Cambridge University Press:
    21 October 2009, pp. 444-448
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  • A Commitment to Electronics

  • Dag Pike
  • Published online by Cambridge University Press:
    21 October 2009, pp. 287-291
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Reviews

Forum

  • Astronomical Fixes Without an Assumed Position

  • Bernard Spencer
  • Published online by Cambridge University Press:
    21 October 2009, pp. 449-451
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  • Trans-oceanic Passages by Rhumbline Sailing

  • Ivica Tijardovic
  • Published online by Cambridge University Press:
    21 October 2009, pp. 292-293
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Record

  • S. S. D. Jones

  • Freddy Stringer
  • Published online by Cambridge University Press:
    21 October 2009, p. 452
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Front matter

  • NAV volume 43 issue 2 Cover and Front matter

  • Published online by Cambridge University Press:
    21 October 2009, pp. f1-f2
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Front matter

  • NAV volume 43 issue 1 Cover and Front matter

  • Published online by Cambridge University Press:
    21 October 2009, pp. f1-f2
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Back matter

  • NAV volume 43 issue 2 Cover and Back matter

  • Published online by Cambridge University Press:
    21 October 2009, pp. b1-b2
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Back matter

  • NAV volume 43 issue 1 Cover and Back matter

  • Published online by Cambridge University Press:
    21 October 2009, pp. b1-b3
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Reviews

Page 3 of 4