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To see information about this book and where to buy: https://astronavigationdemystified.com/astro-navigation-demystified-2/
For information about this book and where to buy: https://astronavigationdemystified.com/applying-mathematics-to-astro-navigation-3/
For information about this book and where to buy: https://astronavigationdemystified.com/astronomy-for-astro-navigation-2/
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Category Archives: gps
Accuracy of Sight Reduction Methods.
In my recent article ‘Why Astro‘, I highlighted the risks in using the GPS. Since writing that article, I am frequently asked “if astro / celestial navigation is to be used, which of the many systems is the best”. Sight … Continue reading →
In Defence of Mer Pas
The noon sight for latitude is a method of calculating latitude from the altitude of the sun at the instant it crosses your meridian and for this reason, the method is also known as ‘Meridian Passage’ or ‘Mer. Pas’. I … Continue reading →
Posted in astro navigation, astronomy, celestial navigation, gps, navigation
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Tagged astro navigation, celestial navigation, GPS failure, navigation
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Why Astro?
In a recent article the discussion centred on our over-reliance on GPS for navigation at sea and the need for back-up systems. The conclusion drawn was that we already have a back-up system, one that has been tried and tested … Continue reading →
What’s The Point of Astro Navigation When We Have The GPS?
Imagine that you are driving through Birmingham when, suddenly, your ‘Sat Nav’ starts to tell you that you are in Manchester. In such a situation, you would quickly realise that the GPS had gone haywire; however, if you were in … Continue reading →
Astro Navigation Demystified 
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