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Tag Archives: schools
The Southern Cross
Just as we can use the Pole Star in the northern hemisphere to find the direction of north, we can use the Southern Cross in the southern hemisphere to find the direction of south. However, whereas we can use the … Continue reading →
Posted in Astro Navigation Topics, navigation, Survival
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Tagged amazon, astro navigation, celestial navigation, kindle, learn, navigation, schools, Southern Cross, survival, survival - navigation
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The Relationship Between Longitude, Latitude and the Nautical Mile.
The Relationship Between Longitude and the Nautical Mile. The Earth’s equatorial circumference is 21640.6 n.m. Since the Equator is a great circle, 1o will subtend an arc of: 21640.6 ÷ 360 = 60.113 ≈ 60 n.m. There are 360 meridians of Longitude so … Continue reading →
Astro Navigation Demystified 
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