Cosmic Coffee Time with Andrew Prestage
It's cosmology in a cup! - Cosmic Coffee Time is bite sized podcasts making sense of space, astronomy, life, and the universe, best enjoyed with a coffee. A down to earth look at what's up there, and it's just for you spacefans. Grab a coffee and see where in the universe we go this time. Follow on Twitter @CosmicCoffTime
Cosmic Coffee Time with Andrew Prestage
#52 Hundreds of years before GPS there was celestial navigation. Let's see how astronomy and some basic equipment kept old time mariners on course.
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Andrew Prestage
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Season 1
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Episode 52
Recently, we took a look at GPS and the space science that makes it work. This time, we're going back to an era when navigators had nothing but their equipment and the stars to tell them where they were, even on the open ocean.
Celestial navigation combined the sextant, almanac and chronometer to make a reliable navigation system that just needed one other thing, the sun and the stars... And some handy astronomical knowledge!
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