Choralone t1_j27c5yb wrote on December 30, 2022 at 4:09 AM Reply to comment by alleyoopoop in How fast does the Milky Way spin? How far does Earth move through space in a year? by Sabre-Tooth-Monkey Those are from density waves, which I believe have a different period than orbital. Permalink Parent 3
Choralone t1_j27c5yb wrote
Reply to comment by alleyoopoop in How fast does the Milky Way spin? How far does Earth move through space in a year? by Sabre-Tooth-Monkey
Those are from density waves, which I believe have a different period than orbital.