The equation of time

The equation of time

Mention the phrase “equation of time,” and most people will probably think you are speaking of some obscure economic formula that has to do with life expectancy versus retirement income. But we celestial navigators we know better. Or do we?


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Predicting planets

The Nautical Almanac is full of so much information that it requires a Baedeker for the novice — and that includes those who have used the book many times. Most celestial navigators primarily take observations of the sun and become familiar with the daily sun pages and all the ephemera having to do with sun sights.

The ultimate Wi-Fi hotspot

With the technological leaps in modern transportation and communications we tend to think of our world as a pretty small place, however with the recent disappearance of Malaysia Airlines Flight MH370, with 239 souls on board it turns out this is only the case when we maintain an electronic communications leash. Cut that leash and the largest man-carrying vehicles can disappear into a figurative black hole. The latest Iridium product, known as GO, short for Global Online, aims to help with this problem.

Boat Beacon

I recently purchased a Samsung Galaxy Centura (an Android-powered smartphone) for my wife Thelma. They are truly amazing high technology devices, but what’s more amazing is the multitudinous apps that can be downloaded either free or for a nominal fee.

Finding deviation from a sun line

A good way to check compass deviation on a heading is to use the azimuth value from our sight reduction every time we do a sun site.

The importance of antenna placement