(gravity anomaly at the center of our supercluster)
The Great Attractor is a spot in space
on the order of 200 million light-years away,
apparently with the mass of many thousand galaxies.
It is the center of Laniakea Supercluster, our local
supercluster. It is evident from redshift
surveys, that show peculiar velocities of galaxies in
the range of +700 km/s to -700 km/s, showing a
large scale streaming motion of galaxies
toward the point in space.
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supergalactic coordinate system