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    Marca: Admiralty

    The Star Almanac

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    COD: NP321

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    This almanac contains positions of the Sun, Polaris and selected bright stars in a form which is convenient for land surveyors who use astronomical observations to determine their geographical position or direction to true north.
    This edition includes a CD-RoM which contains the almanac in pdf format and the coefficients representing the positions of the Sun and stars in ASCII files.
    ASCII data files are available on the CD-ROM which contain coefficients for calculating the Greenwich hour angle and declination of all the stars published in The Star Almanac, accurate to about 1 arcsecond.
    The polynomial coefficients for calculating R (GHA Aries - UT), declination, E and semi-diameter of the Sun published on page 75 of the Almanac are also included.
    The 2012 edition is available:
    UKHO Nautical Publication number: NP 321-12
    Published in the UK: 2011 June 19th
    13 character ISBN: 978-0-7077-41246
    Pages: 80
    This almanac contains positions of the Sun, Polaris and selected bright stars in a form which is convenient for land surveyors who use astronomical observations to determine their geographical position or direction to true north.
    This edition includes a CD-RoM which contains the almanac in pdf format and the coefficients representing the positions of the Sun and stars in ASCII files.
    ASCII data files are available on the CD-ROM which contain coefficients for calculating the Greenwich hour angle and declination of all the stars published in The Star Almanac, accurate to about 1 arcsecond.
    The polynomial coefficients for calculating R (GHA Aries - UT), declination, E and semi-diameter of the Sun published on page 75 of the Almanac are also included.
    The 2012 edition is available:
    UKHO Nautical Publication number: NP 321-12
    Published in the UK: 2011 June 19th
    13 character ISBN: 978-0-7077-41246
    Pages: 80

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