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submitted 1 week ago by [email protected] to c/[email protected]
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[-] [email protected] 7 points 1 week ago* (last edited 1 week ago)

I had to check that math in my head.

4ly = 4yr • 3.1 * 10^7 sec/yr • 3 * 10^5 km/sec ≈ 36 trillion km

[-] [email protected] 7 points 1 week ago

Multiply by 0.6214 to get miles = 22 trillion miles

[-] [email protected] 6 points 1 week ago

I’m sure they have the right number. Mine was a ballpark estimate, as one does in physics. I think Proxima Centauri is about 4.2ly from Earth.

[-] [email protected] 6 points 1 week ago

"But the closest star is Sol"

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this post was submitted on 06 Jul 2024
420 points (97.7% liked)

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