Kármán-linjen
Kármán-linjen er en populær definition på grænsen mellem Jordens atmosfære og det ydre rum.[2] Grænsen er sat til 100 km over Jordens overflade, hvilket omtrent svarer til den højde, hvor atmosfæren er så tynd, at fly skal flyve lige så hurtigt som rumfartøjer i kredsløb ved samme højde. Linjen er opkaldt efter Theodore von Kármán og anerkendes blandt andet af Fédération Aéronautique Internationale.
Kildehenvisninger
- ^ Layers of the Atmosphere, National Weather Service JetStream – Online School for Weather
- ^ Dr. S. Sanz Fernández de Córdoba (2004-06-24). "The 100 km Boundary for Astronautics". Fédération Aéronautique Internationale. Arkiveret fra originalen 2011-08-09. Hentet 2014-05-07.
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A dark blue shaded diagram subdivided by horizontal lines, with the names of the five atmospheric regions arranged along the left. From bottom to top, the troposphere section shows Mount Everest and an airplane icon, the stratosphere displays a weather balloon, the mesosphere shows meteors, and the thermosphere includes an aurora and the Space Shuttle. At the top, the exosphere shows only stars., Updating File:Atmosphere layers-en.svg caricature, replacing Space Shuttle with International Space Station. Atmospheric density through the lowest two layers is overlaid so as to show how much atmosphere is found at what altitudes.
A dark blue shaded diagram subdivided by horizontal lines, with the names of the five atmospheric regions arranged along the left. From bottom to top, the troposphere section shows Mount Everest and an airplane icon, the stratosphere displays a weather balloon, the mesosphere shows meteors, and the thermosphere includes an aurora and the Space Shuttle. At the top, the exosphere shows only stars., Updating File:Atmosphere layers-en.svg caricature, replacing Space Shuttle with International Space Station. Atmospheric density through the lowest two layers is overlaid so as to show how much atmosphere is found at what altitudes.
