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    Radial Velocity of an Object

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    The Ha line (Hydrogen) of a certain star is received on Earth at a wavelength of 656 nm. What is the star's radial velocity with respect to the Earth?

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    The radial velocity of an object in, say, km/sec, can be determined from the Doppler shift equation:
    <br>v / c = (la - laRe) / laRe
    <br>Where v = ...

    Solution Summary

    This job figures a star's radial velocity using Ha lines.