100 kilometres

100 kilometres
The Suez Canal is 163 kilometres long

A length of 100 kilometers (about 62 miles), as a rough amount, is relatively common in measurements on Earth and for some astronomical objects. It is the altitude at which the FAI defines spaceflight to begin. To help compare orders of magnitude, this page lists lengths between 100 and 1,000 kilometres (105 and 106 metres).

Contents

Conversions

A distance of 100 kilometres is equal to about 62 miles[1] (or 62.13711922 miles).

Human-defined scales and structures

Nature

  • 203 km — length of Sognefjorden, the second largest fjord in the world
  • 240 km — widest width of the English Channel
  • 430 km — length of the Pyrenees
  • 724 km — length of the Om River
  • 897 km — length of the River Douro

Astronomical

See also

  • Distances shorter than 100 kilometres
  • Distances longer than 1,000 kilometres

Notes

  1. ^ The exact category (asteroid/dwarf planet/planet) to which particular solar system objects belong, has been subject to some revision since the discovery of extrasolar planets and trans-Neptunian objects
1 E-6 m - Click on the relevant thumbnail image to jump to the desired Human-scale order of length magnitude: top-left is 1e-6m, bottom-right is 1e5m. 1 E-5 m 1 E-4 m 1 E-3 m 1 E-2 m 1 E-1 m 1 E0 m 1 E1 m 1 E2 m 1 E3 m 1 E4 m 1 E5 m
Click on the thumbnail image to jump to the desired Human-scale order of length magnitude article: top-left is 1E-6 m, lower-right is 1E5 m.

References

  1. ^ Trueknowledge.com, 2010, webpage: "100 km"
  2. ^ Thomas, P. C.; Parker, J. Wm.; McFadden, L. A.; et al. (2005). "Differentiation of the asteroid Ceres as revealed by its shape". Nature 437 (7056): 224–226. Bibcode 2005Natur.437..224T. doi:10.1038/nature03938. PMID 16148926. 



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