Their bulk motions in the local standard of rest have velocities which are measured in excess of 70 90 km s " 1.
2.
Yes, in fact this 220 km / s frame is called the local standard of rest .-- talk ) 11 : 25, 7 July 2010 ( UTC)
3.
Hence the farther the photon travels the more it will appear doppler shifted with respect to the local standard of rest . talk ) 08 : 15, 18 February 2010 ( UTC)
4.
The velocity range is huge ( from " 400 to 400 km s " 1 in reference to Local Standard of Rest ) and velocity patterns do not follow the rest of the Milky Way.
5.
This speed is not to be confused with the orbital speed of the Sun around the Galactic center, which is about 220 km / s and is included in the movement of the Local Standard of Rest.
6.
This is not true for the Sun ( the Sun's velocity relative to the local standard of rest is approximately 13.4 km / s ), and not necessarily true for other objects in the Milky Way either.
7.
The reason is that if all points on the ruler are at relative rest, then back then both ends of the ruler were moving rapidly inwards with respect to the Hubble flow, and therefore were Lorentz contracted with respect to cosmological coordinates ( which take the Hubble flow as the local standard of rest ).
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