Measurement of the radial velocity of the Sun as a star by means of a reflecting solar system body

  title={Measurement of the radial velocity of the Sun as a star by means of a reflecting solar system body},
  author={Antonino Francesco Lanza and Paolo Molaro},
  journal={Experimental Astronomy},
Minor bodies of the solar system can be used to measure the spectrum of the Sun as a star by observing sunlight reflected by their surfaces. To perform an accurate measurement of the radial velocity of the Sun as a star by this method, it is necessary to take into account the Doppler shifts introduced by the motion of the reflecting body. Here we discuss the effect of its rotation. It gives a vanishing contribution only when the inclinations of the body rotation axis to the directions of the… 

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RDH gratefully acknowledges STFC studentship grant number ST/J500744/1, and a grant from the John Templeton Foundation. ACC and RF acknowledge support from STFC consolidated grants numbers

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