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The solar system has an orbital period of 250k years. Nearby systems do not have the same orbital period. I’m not sure galaxies are considered stable to indiv
by willis936 6y ago
The solar system has an orbital period of 250k years. Nearby systems do not have the same orbital period. I’m not sure galaxies are considered stable to individual stellar systems.
- 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”.