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The nearest star outside our solar system is Proxima Centauri, at 4.2 light years. Light travels 186,000 miles per second, so 3600 seconds per hour times 24 hours per day times 365.25 days per year = 31557600 seconds per year.

Times 186,000 miles per second times 4.2 light years equals 24,652,797,120,000 miles. To the CLOSEST other star.

The bright star Vega is only 25 LY away, so that's about 146,742,840,000,000 miles. Rigel, the brightest of the "nearby" stars, is about 800 LY away, so that's about 4,695,770,880,000,000 miles. In words, that would be 4.6 QUADRILLION miles.

The brightest single star that we are aware of is S Doradus in the Large Magellanic Cloud, one of the "daughter" galaxies of our Milky Way. S Doradus is 169,000 LY away, so in miles this would be 991,981,598,400,000,000 miles away.

All of the other galaxies are farther away than that, but they are so far away that we generally cannot see individual stars at that distance.

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16y ago

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