The Nautical Almanac
The free online Nautical Almanac
The world's most complete source of free celestial navigation information



The Nautical Almanac
1911, 1981 & 2000 through 2020
All Almanacs were generated by Pyalmanac on March 2016


Everything you need
for 2016

click here

Everything you need
for 2017

click here


The Sun only Almanac
2015 through 2020
All Almanacs were generated by Pyalmanac on March 2016

Astronomical Phenomena
2015 through 2017



Essential Celestial Navigation downloads

Increments & Corrections for the Sun (on 2 pages)
Increments & Corrections for Sun, Planets, Aries, Moon (the "yellow pages")


Explanation of The Nautical Almanac Daily pages

PUB. NO. 249 Vol. 1- 2015
   (size- 180 meg)  (courtesy of Celestaire)
PUB. NO. 249 Vol. 2
PUB. NO. 249 Vol. 3

PUB. NO. 229

ALTITUDE CORRECTION TABLES 10--90—SUN,STARS,PLANETS
Altitude Correction Tables for the Moon
Polaris- Correction for (Q) (2016)

TABLE 4- GHA and Declination of the Sun for the Years 2001 to 2036
TABLE 4- Long Term GHA Aries

TABLE 5- Correction to Tabulated Altitude for Minutes of Declination
TABLE 3- Conversion of Arc to Time

Navigational Star Chart

2015 Navigational Stars SHA & Dec
2016 Navigational Stars SHA & Dec
2017 Navigational Stars SHA & Dec

The Air Almanac- 2015 (be patient- it's 900 pages)
The Air Almanac- 2016

The Air Almanac- 2017

Universal Plotting Sheet



Celestial Navigation Forum
Discuss and learn about Celestial Navigation.
All are welcome!


    Complete Sun & Star sight reduction Procedure

‣  Methods & Forms

‣  Celestial Navigation Formulas

‣  Useful Links

‣  Sun Sight Reduction Excel Spreadsheet
            A Sun sight reduction program!  From BackBearing.com


Complete Celestial Sight Reduction Excel Spreadsheet
            Covers all navigational bodies. 

Complete Celestial Sight Reduction Spreadsheet in ODS format
            Covers all navigational bodies.  Can be used in LibreOffice Calc.



Bowditch
American Practical Navigator
The complete work & various selections



Disclaimer and Warning
Prior to use verify the accuracy of The Nautical Almanac or data you download from this site.  They SHOULD NOT and MUST NOT be relied upon for celestial navigation work of any sorts or any purpose whatsoever.  You use them at your own risk or peril.


Write to us

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TheNauticalAlmanac.com is exclusively an archival and educational website and derives no remuneration from anything presented on the site. The site's sole purpose is to preserve and disseminate information about the art and science of celestial navigation.

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The Nautical Almanacs and Sun Almanacs listed at the top of our site were created or derived from a program written by the great Norwegian sailor Enno Rodegerdts.  Without his work this site wouldn't exist.

http://sv-inua.net/the-nautical-almanac


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