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Apr 19, 2022 at 16:03 comment added John Doty @ChrisB.Behrens Not so boneheaded when you appreciate that the dispersion is relative to orbital motion around the galaxy of ~250 km/s.
Apr 19, 2022 at 15:15 comment added Chris B. Behrens Ah, yeah. Assuming that stars have similar velocities is boneheaded.
Apr 18, 2022 at 20:56 history answered John Doty CC BY-SA 4.0