Systematic Maps - Astro Navigation

Systematic Maps - Sysmaps: Applied Topographical and Physical Maps

Systematic Navigation

Systematic Navigation solves all the problems of calculating hour angles, declination and sight reduction and then plots sight lines and statistical fixes for up to three sights. It is totally automated and removes the need for a pocket calculator, almanac or sight tables and provides: 

  1. Position fixes from two or three sextant sights without an almanac
  2. Automatic calculation of hour angles, declination and sight reduction
  3. Chart plots and full results print-outs of all angles and position lines
  4. Stars charts for all 59 stars giving SHA, elevation and bearing
  5. Star identification from angle and bearing
  6. Schedule of positions of all celestial bodies
  7. Sun and moon rise and set including sun transits
  8. Great circle navigation

Systematic Maps - SysMaps, Astro Navigation without The Nautical Almanac using data from Compact Data for Navigation and Astronomy

The accompanying manual does not teach all aspects of astro navigation however it is particularly suited to students of navigation who wish to apply the methodology. For example, you can choose to select the calculation of hour angles and declination in three ways: 

  1. Aries Corrections, or
  2. Polynomial Coefficients, or
  3. Almanac Data - Greenwich and Sidereal Hour Angles and Declination

The Systematic Navigation manual explains all the formulae with examples and follows the procedures outlined in The Nautical Almanac and DP330: NavPac and Compact Data 2021-2025.

Systematic Maps - SysMaps, Chart of Sun, Mooon , Planets and Stars locations


Systematic Navigation is an Excel-based solution for astro and offshore navigation

The latest version contains data and tables valid from 1991 to 2025

The application works in both German and English and has been continually developed and improved since 1991 as new data has become available

The software uses methods adapted from the UK Nautical Almanac Office and other sources