To: qam1
If you are wondering how they measure the speed of rotation of galaxies, it is by doppler-like measurements--red shift. There is no need to make a series of historical measurements.
85 posted on
10/03/2003 5:50:14 PM PDT by
RightWhale
(Repeal the Law of the Excluded Middle)
To: RightWhale
I understand the doppler effect measurements, What I am saying is the red/blue shift could have other thing effecting it besides the simple Kepler rotation.
87 posted on
10/03/2003 5:56:46 PM PDT by
qam1
(Don't Patikify New Jersey)
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