Orders of Magnitude

Lengths

Order of magnitude Name Value Fields Source
10-35 m Planck length 1.6 × 10-35 m fundamental physics [1]
107 m Mars equatorial radius 0.34 × 107 m astronomy [2]
107 m Venus equatorial radius 0.61 × 107 m astronomy [2]
107 m Nominal Earth equatorial radius 0.64 × 107 m astronomy [1]
107 m Neptune equatorial radius 2.5 × 107 m astronomy [2]
107 m Uranus equatorial radius 2.6 × 107 m astronomy [2]
108 m Saturn equatorial radius 0.60 × 108 m astronomy [2]
108 m Jupiter equatorial radius 0.71 × 108 m astronomy [2]
109 m Nominal Solar equatorial radius 0.70 × 109 m astronomy [1]
1011 m Astronomical unit 1.5 × 1011 m astronomy [1]
1016 m Light year 0.95 × 1016 m astronomy [1]
1016 m Parsec 3.1 × 1016 m astronomy [1]
1020 m Solar distance from Galactic center 2.6 × 1020 m astronomy [1]

Times

Order of magnitude Name Value Fields Source
107 s Tropical year (equinox to equinox, 2020) 3.2 × 107 s astronomy [1]

Sources