Unlikely Polaris. The luminosity difference between Polaris Aa and the other two is 3 orders of magnitude. Mizar and Alcor (the doublet second from the end of the Big Dipper) has been used for centuries as a vision test. If you can see the doublet, it’s equivalent to 20/20 (or 6/6) on an eye chart.
Technically just one of the three stars (the big one). The other two are 500 million and 1.5 billion years old.
Shark facts aside, the fact that Polaris is a ternary system, rather than a single star has completely blown my mind.
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Unlikely Polaris. The luminosity difference between Polaris Aa and the other two is 3 orders of magnitude. Mizar and Alcor (the doublet second from the end of the Big Dipper) has been used for centuries as a vision test. If you can see the doublet, it’s equivalent to 20/20 (or 6/6) on an eye chart.
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Amazing!
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Source? Stars in multiple star systems are usually the same age.
I found a source saying he’s mistaken. If you scroll way down, it says all three stars are 70 million years old.
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The snopes article someone posted goes into that