| Mass of earth | ME | 5.97 × 1024 kg |
| Mean radius of earth | RE | 6.37 × 106 m |
| Mean distance from sun | aE | 1.50 × 1011 m |
| Orbital period | TE | 365.3 solar days |
| Mean surface gravity | g | 9.81 m/s2 |
| Magnetic dipole moment | µE | 8.0 × 1022 A*m2 |
| Mass of sun | mS | 1.99 × 1030 kg |
| Mean radius of sun | RS | 6.96 × 108 m |
| Surface gravity | gS | 274 m/s2 |
| Distance from galactic center | aS | 2.6 × 1020 m |
| Period about galactic center | TS | 200 My |
| Mass of moon | MM | 7.35 × 1022 kg |
| Mean radius | RM | 1.74 × 106 m |
| Mean distance from earth | aM | 3.85 × 108 m |
| Orbital period | TM | 27.3 solar days |
| Surface gravity | gM | 1.62 m/s2 |