The Star Almanac for Land Surveyors
Description:
Nautical Publication Number: NP 321
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.
Status:
- The 2008 edition is available from
The Admiralty Web Shop and
UKHO distributors.
Nautical Publication Number: NP 321-08
Published in the UK: 2007
13 character ISBN: 978-0-7077-40492
Pages: 80
Retail price: £16.35 - The 2009 edition is available from
The Admiralty Web Shop and
UKHO distributors.
Nautical Publication Number: NP 321-09
Published in the UK: 2008 June 19th
13 character ISBN: 978-0-7077-40713
Pages: 80
Retail price: £16.35
© Crown Copyright 2008