Lysets fartc = 299.792.458 m/s
GravitationskonstantenG = \unit[6,674 \cdot 10^{-11}]{m^3 \cdot kg^{-1} \cdot s^{-2}}
Stefan-Boltzmanns konstant\sigma = \unit[5,6704 \cdot 10^{-8}]{W \cdot m^{-2} \cdot K^{-4}}
Astronomisk Enhed1 AE = 149.597.871.000 m
1 år1 år = 365,25 døgn
Solens radiusR_{\mathit{Sol}} = \unit[695.990.000]{m}
Solens masseM_{\mathit{Sol}} = \unit[1,989\cdot 10^{30}]{kg}
Solens effektL_{\mathit{Sol}} = \unit[3,846 \cdot 10^{26}]{W}
Solens overfladetemperaturT_{\mathit{Sol}} = \unit[5778]{K}
Merkurs radiusr_{\mathit{Merkur}} = \unit[2439,7]{km}
Merkurs massem_{\mathit{Merkur}} = \unit[3,3010\cdot 10^{23}]{kg}
Venus' radiusr_{\mathit{Venus}} = \unit[6051,8]{km}
Venus' massem_{\mathit{Venus}} = \unit[4,8673\cdot 10^{24}]{kg}
Jordens radiusr_{\mathit{Jord}} = \unit[6371,0]{km}
Jordens massem_{\mathit{Jord}} = \unit[5,9722\cdot 10^{24}]{kg}
Mars' radiusr_{\mathit{Mars}} = \unit[3389,5]{km}
Mars' massem_{\mathit{Mars}} = \unit[6,4169\cdot 10^{23}]{kg}
Jupiters radiusr_{\mathit{Jupiter}} = \unit[69911]{km}
Jupiters massem_{\mathit{Jupiter}} = \unit[1,8981\cdot 10^{27}]{kg}
Saturns radiusr_{\mathit{Saturn}} = \unit[58232]{km}
Saturns massem_{\mathit{Saturn}} = \unit[5,6832\cdot 10^{26}]{kg}
Uranus' radiusr_{\mathit{Uranus}} = \unit[25362]{km}
Uranus' massem_{\mathit{Uranus}} = \unit[8,6810\cdot 10^{25}]{kg}
Neptuns radiusr_{\mathit{Neptun}} = \unit[24622]{km}
Neptuns massem_{\mathit{Neptun}} = \unit[1,0241\cdot 10^{26}]{kg}
Plutos radiusr_{\mathit{Pluto}} = \unit[1151]{km}
Plutos massem_{\mathit{Pluto}} = \unit[1,305\cdot 10^{22}]{kg}