3 ms·
Actually the speeds of objects orbiting the center of galaxies first increase then quickly flatten out the further you get from the center: https://en.wikipedia
by matt_kantor 5y ago
Actually the speeds of objects orbiting the center of galaxies first increase then quickly flatten out the further you get from the center: https://en.wikipedia.org/wiki/Galaxy_rotation_curve https://en.wikipedia.org/wiki/Galaxy_rotation_curve
This is one piece of evidence for the existence of dark matter.
- rbanffy 5y agoInteresting. Thanks for the correction. So, the further you go towards the rim, the less the galactic year changes for you?
- matt_kantor 5y agoThere's some variability across different galaxies, but generally the curve is pretty flat if you're not right near the center. So the galactic year for a star at the outermost edge of our galaxy should be about the same as ours.