Hanyar: Matsakaicin tazara tsakanin Neptune da Sun shine kilomita biliyan 4.5 (kimanin raka'a 30.1 na astronomical (AU), kuma yana kammala zagaye a kowane shekara 164.79, yana ƙarƙashin canjin canji na kusan ±0.1 shekaru. Nisan perihelion shine 29.81 AU; nesa na aphelion shine 30.33 AU.A ranar 11 ga Yuli 2011, Neptune ya kammala cikakken zagaye na farko na cikakken barycentric tun lokacin da aka gano shi a 1846, kodayake bai bayyana a ainihin wurin ganowa a sama ba, saboda Duniya tana cikin wani wuri daban a cikin zagayenta na kwanaki 365.26. Saboda motsin Sun dangane da barycentre na Solar System, a ranar 11 ga Yuli Neptune kuma bai kasance a ainihin wurin ganowa dangane da Sun ba; idan aka yi amfani da tsarin haɗin gwiwar heliocentric na yau da kullun, an gano ganowa a ranar 12 ga Yuli 2011.
a matsakaita kowane shekara 164.79