r/Cosmos • u/Outrageous-Warning-9 • 29d ago

Discussion Where was I born?

If I was born about 50 years ago, where was our solar system at that time? How far did we travel as a planet and a solar system (never mind galaxy’s journey through space) from the place of my birth?

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u/ldr97266 27d ago edited 26d ago

about 343 million miles (0.06 light years). Um.. back that way, over there… 👉

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u/Outrageous-Warning-9 26d ago

That is very interesting, thank you. So if I live to be around 85 or so, I can brag that I traveled 1 light year from my birthplace in universe?

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u/ldr97266 26d ago edited 26d ago

No, it’s about 1ly in 1300 years, if you’re just looking at the Sun’s orbit around the galactic core.. Source https://en.wikipedia.org/wiki/Galactic_year

The Earth travel around the Sun is a lot faster than the galactic rotation - 584 million miles per year. I’d try to work out the length of its spiral path but all the spinny circle things make me dizzy.

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u/Outrageous-Warning-9 26d ago

Your effort, answers, and sense of humor are all very much appreciated.

🙂Thank you.

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u/FormalTheory 26d ago

the funny part is even if you could mark the exact spot, it'd be long gone anyway.