= Nominal solar and planetary conversion constants by the International Astronomical Union
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https://iauarchive.eso.org/static/resolutions/IAU2015_English.pdf#page=7[2015 ResolutionB3: nominal solar and planetary conversion constants]
The adopted nominal solar <radius> is $6.957\times10^8\,\mathrm m$ and nominal solar <mass> parameter is $1.3271244\times10^{20}\,\mathrm{m^3\,s^{-2}}$. These are conversion conventions; they do not provide a measured <radius> or <mass> for another host <star>.
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