Category Archives: Polaris

Precession of Earth

I think one of the most interesting topics in Chapter 2 of the Astronomy textbook is about the concept of precession, or the gradual change in the rotational axis of Earth. The direction of Earth’s axis rotates on a 26,000 year cycle. That may mean next to nothing to us in our lifespan, but precession will gradually […] Continue reading Continue reading

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Our Guiding Star

So many stars come and go based on the time of year, where we are located on the planet, how much of the sky is visible, etc.  Although we can only see some stars on some nights there is one star that we can always see.  This star is the North Star also known as […] Continue reading Continue reading

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The Celestial Compass

For millennia, humans have known that the movements of certain celestial objects repeat in a predictable pattern, and for millennia humans have mapped the movements of stars and other objects in the heavens and tried to make predictions about the cycles for these objects.  Most humans probably didn’t care about what might be up in […] Continue reading Continue reading

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