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    Physics A-Level

    Parallax

    What Parallax means in Physics A-Level, as defined for AQA.

    Definition of Parallax

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    Reference: AQA

    A star shifts against the background as Earth orbits, and d = 1/p with d in parsecs when p is in arcseconds.
    AQA · Absolute magnitude, M (A-level only) (study guide)

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