The Closest Star To Our Sun Is Still Light-Years Away

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Proxima Centauri is a red dwarf in the Alpha Centauri system. It's so dim that you can't see it with the naked eye-you need a telescope, and you also need to be in the Southern Hemisphere. In fact, of all the stars and brown dwarfs that are within 16.3 light-years of our solar system, only 12% of them can be seen without the aid of technology.

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Key Facts In This Video

  1. Alpha Centauri is a system of three stars. 00:32

  2. The New Horizons spacecraft travels at nearly 60,000 km/hr (37,282 mph). 01:23

  3. Sirius has twice the mass of the sun, and is the brightest star in the night sky. 02:03

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