= Nominal solar mass parameter
{title2=$(GM)_\odot^{\rm N}$}
The exact conversion factor $1.3271244\times10^{20}\,\mathrm{m^3s^{-2}}$. Dividing a measured <gravitational parameter> by this factor expresses a mass in nominal solar units, avoiding a separate conversion through the measured <gravitational constant>.<Resolution B3 on recommended nominal conversion constants for selected solar and planetary properties by International Astronomical Union>[Resolution B3, PDF pp.2–3, nominal solar mass parameter]{ref}
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