Explanation: Looking toward the south from low Earth orbit, the crew of the Space Shuttle Endeavor made this stunning time exposure of the Aurora Australis (southern lights) in April of 1994. The aurora are caused by high energy electrons from the Solar Wind which are funneled into the atmosphere by the Earth's magnetic field. The reddish colors occur at the highest altitudes (about 200 miles) where the air is least dense. At lower altitudes and greater densities green tends to dominate. At the lowest altitudes a pinkish glow is sometimes produced. The familiar constellation of Orion the Hunter is clearly visible above the dark horizon in the background. Because of the shuttle's orbital motion, the bright stars in Orion appear slightly elongated.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Publikacii s klyuchevymi slovami: Orion - Orion - polyarnoe siyanie - Solnechnyi veter Publikacii so slovami: Orion - Orion - polyarnoe siyanie - Solnechnyi veter
Sm. takzhe: Smotrya v storonu s solnechnogo zonda "Parker" Voshod Oriona Orion, kotoryi vy pochti mozhete uvidet' Stabil'noe krasnoe polyarnoe siyanie nad Novoi Zelandiei Stabil'noe krasnoe polyarnoe siyanie i Mlechnyi Put' Severnoe siyanie nad Norvegiei v vide skazochnogo sushestva Apollon-11: kak poimat' nemnogo Solnca Vse publikacii na tu zhe temu >>