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The two values are the peculiar velocity of the local group relative to the Cosmic microwave background The Local Group — the galaxy group that includes our own Milky Way galaxy — appears to be moving at 627±22 km/s [390±14 mps ] in the direction of galactic longitude ℓ = 276°±3°, b = 30°±3° Or the peculiar velocity of the solar system relative to the CMB: ...

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