本帖最后由 人与自然 于 2012-3-21 01:11 编辑
http://thebigfoto.com/aurora-australis-the-southern-polar-lights
Aurora Borealis southern counterpart, the aurora australis or the southern polar lights, has similar properties, but is only visible from high southern latitudes in Antarctica, South America, or Australasia. Australis is the Latin word for “of the South.”
The light show comes to us courtesy of our Sun. Electrically charged particles produced on the Sun are ejected in all directions and a great amount of them head toward Earth. As these particles (called solar wind) encounter the Earth’s outer regions, the magnetic field of the Earth begins to interact with the particles.
南极光是相对于北极光而言，形成机理与北极光一样，物理特性也近似，但是仅仅是在高纬度的南极地区，如南极洲、南美、澳洲、新西兰及附近南太平洋诸岛可见。
1 Aurora Australis at the South Pole (2008) Credit: Euclid vanderKroew #
南极点上空的极光
2 Aurora Australis Red. Credit: lrargerich #
红色的南极光
3 July 2005, a full moon and 25 second exposure allowed sufficient light into this photo taken at Amundsen-Scott South Pole Station (90°0′0″S, 139°16′0″W) during the long Antarctic night. Credit: U.S. National Science Foundation (Wikipedia) /Chris Danals #2005年7月，25秒曝光下的阿蒙森斯科特南极考察站上空的极光
4 Aurora Australis. Credit: sandwichgirl #
南极上空的极光
5 Aurora Australis - Antarctica 23. Credit: Chantal Steyn #
南极上空的极光
6 Aurora Australis - Antarctica 29. Credit: Chantal Steyn #
南极上空的极光
7 Aurora Australis - Antarctica 28. Credit: Chantal Steyn #
南极上空的极光
8 Aurora Australis - Antarctica 31. Credit: Chantal Steyn #
南极上空的极光
9 Aurora Australis - Antarctica 32. Credit: Chantal Steyn #
南极上空的极光
10 Aurora Australis. Credit: vilebender #
11 Aurora australis in Antarctica, 2006-04-22. Credit: Samuel Blanc #
南极上空的极光
12 Antarctica. Auroras, 15jun07. Credit: sandwichgirl #
13 Aurora australis: nature's laser light show. Taken from the trailhead to castle rock near arrival heights, mcmurdo station antarctica. Winter 2007 (note: winter in south hemisphere = summer in north). Credit: sandwichgirl #
2007年冬季的南极光，大自然的激光秀。 |
|
置顶卡
变色卡
千斤顶
显身卡
