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What is the velocity of the Milky Way barycenter with respect to the CMBR?
How fast is our galaxy moving, and in which direction in celestial, ecliptic, or galactic coordinates?
Relative to the comoving reference frame.
4 Answers
- nebLv 79 hours ago
Well, it would certainly be easy to measure at the barycenter by the red/blue shift of the CMBR. We know the earth is moving at about 400 km/s with respect to CMBR (have no idea the direction - look it up). So, if there is data somewhere that gives the velocity/direction of earth (or some other comoving reference point) with respect to the barycenter, you could probably figure it out.
- KennyBLv 72 days ago
The simplest answer is that the barycenter is NOT moving relative to the CMBR. Keeping it simple, our galaxy can be viewed as the center of the universe (relativistically speaking) and so can the CMBR.
