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simply2koool

7y

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Fact: Light of North Star

Fact: Light of North Star

The light of North star that we see nowadays was emitted from the star 1586. Distance traveled by light in one year is called one light year. North Star is 434 light years away from earth. How did people

$ 0.268

15

wheatdogg

9y

Basic astronomy -- the precession of the Earth

Basic astronomy -- the precession of the Earth

Like a big top, the Earth 's spin precesses. Image source I touched on this topic with my last post about the North Star, Polaris, and latitude. Now I'll explain precession a bit more in detail. Simply

$ 73.180

49

wheatdogg

9y

Basic astronomy -- the North Star, Polaris, and its relation to latitude

Basic astronomy -- the North Star, Polaris, and its relation to latitude

Looking north on the 39th parallel (Source: Stellarium for Windows) Do you know how to find Polaris, the North Star? It's a useful skill, in case you ever get lost without your GPS-enabled cellphone or