100 megametres
To help compare different orders of magnitude, this page lists lengths starting at 108metres (100 megametres or 100,000 kilometres or 62,150 miles).
Distances shorter than 108 metres
102 Mm — Diameter of HD 149026 b, an unusually dense Jovian planet
111.191 Mm — 20,000 (nautical, British) leagues (see Jules Verne, Twenty Thousand Leagues Under the Sea)
120 Mm — Diameter of Saturn
140 Mm — Diameter of Jupiter
174 Mm — Diameter of OGLE-TR-122b, the smallest known star
180 Mm — Diameter of TrES-4, the largest known planet
196 Mm — Diameter of Proxima Centauri, a typical red dwarf
299.792 Mm — One light second; the distance light travels in vacuum in one second (see speed of light)
384.4 Mm (238,855 mi) — Average Earth-Moon distance
Distances longer than 109 metres
References