Witherbys Nautical Almanac 2015 (eBook - network) 15 users network

Published Date

November 1999

Witherbys Nautical Almanac 2015 (eBook - network) 15 users network

(Excludes any applicable taxes)

In addition to the information supplied in your typical almanac, Witherbys Nautical Almanac includes:

  • Country information, including time zone, population, currency, Int’l dialing codes and details of their merchant fleet

  • extracts from a booklet ‘Celestial navigation Explained’ that takes you from the basics to resolving a cocked hat problem

  • a worked example on using the ‘Concise Sight Reduction tables of The Nautical Almanac’

  • formulae and conversion factors

  • update on bridge equipment required, AIS, ARPA, BNWAS, ECDIS,GALILEO, VDR and GMDSS

  • the use and care of the sextant

  • the use and care of an azimuth mirror

  • worked navigational examples using the Witherbys Nautical Almanac

  • colour star charts


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A new format Nautical Almanac for the 21st Century.

Using the popular wire bound concept with larger clearer font, cream pages for increments & corrections, all help to make Witherbys Almanac a user-friendly style of Nautical Almanac for today’s navigator. 


Altitude correction tables for Sun, stars, planets

Additional refraction corrections for non-standard conditions

Title page, preface, etc.

Phases of the Moon



Planet notes and diagram

Daily pages: Ephemerides of Sun, Moon, Aries and planets; sunrise, sunset, twilights, moonrise, moonset, etc.

Standard times

Star charts

Stars: SHA and Dec of 173 stars, in order of SHA (accuracy 0′.1)

Polaris (Pole Star) tables

Sight reduction procedures; direct computation

Concise sight reduction tables

Form for use with concise sight reduction tables

Country Information

Celestial Navigation Explained

Use of Concise Sight Reduction Tables of The Nautical Almanac

Bridge Notes / Nav Formulae

Conversion Factors


The use and care of a sextant

The use and care of an azimuth mirror

Magnetic Compass

Worked Examples

i Conversion of arc to time

ii – xxxi Tables of increments and corrections for Sun, planets, Aries, Moon

xxxii Tables for interpolating sunrise, sunset, twilights, moonrise, moonset, Moon’s meridian passage

xxxiii Index to selected stars

xxxiv – xxxv Altitude correction tables for the Moon  

Title: Witherbys Nautical Almanac 2015 (eBook - network) 15 users network
Subtitle: 2015
Number of Pages: 440
Product Code: WS1463ED
ISBN: ISBN 13: 978-1-85609-673-7 (9781856096737), ISBN 10: 1-85609-673-4 (1856096734)
Published Date: November 1999

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Client machines:


Windows XP SP2/SP3, Windows Vista, Windows 7 and Windows 8 (except Windows RT) Operating System (32 bits or 64 bits).

Microsoft .NET 2.0, 3.0 or 3.5 (preinstalled on Windows Vista and Windows 7).


Server (shared folder): 

The network version needs to be installed on a shared network folder where the users have write permission.

The type of file server hosting the shared network folder does not matter (on small networks, it can be a normal workstation).

A DVD-drive is recommended to copy the files to the shared folder but the CD/DVD is not protected so the files can be transferred via a USB memory stick or across the network.


After installing the program the eBooks need to be unlocked using the licence code (READ-XXXX-...). This is a one off procedure that can be done from any client PC.


Unlocking an eBook for a number of users, for instance 5, will allow up to 5 computers to access the eBook.

This is done on a ''''''''''''''''first come first served'''''''''''''''' basis meaning subsequent computers will not be able to access the eBook once the licences are used up.

It is possible to transfer licences between computers (with one limitation: the PC giving up the licence cannot access the same eBook for a week).


Remote Desktop Services (Terminal Services) and virtual environments are not supported

15 users network