The Oort Constants · A shear, B vorticity
unseel.com · differential rotation · Milky Way disk · local standard of rest
A 15.3 km/s/kpc
B −11.9 km/s/kpc
Step
The Sun (LSR)
Disk stars (rotate)
Receding (vr > 0)
Approaching (vr < 0)
Unseel.com · The Oort Constants