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> The solar system has an orbital period of 250k years. I thought it was 250 million years, though maybe I'm misunderstanding you. [1] [1] https://www.science
by breck 6y ago
> The solar system has an orbital period of 250k years.
I thought it was 250 million years, though maybe I'm misunderstanding you. [1]
[1] https://www.sciencefocus.com/space/how-long-does-it-take-the-sun-to-orbit-the-galaxy/#:~:text=We%20tend%20to%20think%20of,to%20complete%20a%20single%20orbit https://www.sciencefocus.com/space/how-long-does-it-take-the....
- willis936 6y agoMy mistake! I didn’t check, but knew the value was in the range of “too long to assume our galactic neighborhood is static or even repeating but too short to not have had potential repetitions show up in Earth geology”.