Tag Archives: astronomy

Calculating the Sun’s Declination in a Survival Situation

In an ideal situation, we could find our latitude by using a satellite navigation system.  If sat-nav is not available, we can use astro navigation to calculate our latitude by the method shown at the following links: Latitude from the … Continue reading

Posted in astro navigation, Survival | Tagged , , , , , , , , , , , , , | Leave a comment

Spherical Trigonometry Introduction

In the diagram above, the inner circle represents the Earth and the outer circle represents the celestial sphere.  Point N represents the North Pole, B represents an observer’s position on the surface of the Earth, and U represents the geographical … Continue reading

Posted in Astro Navigation Topics, Schools | Tagged , , , , , , | 1 Comment