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Aurora Australis from International Space Station Post Card by astronomical
Aurora Australis Observed From the International Space Station

Among the views of Earth afforded astronauts aboard the International Space Station (ISS), surely one of the most spectacular is of the aurora. These ever-shifting displays of colored ribbons, curtains, rays, and spots are most visible near the North (aurora borealis) and South (aurora australis) Poles as charged particles (ions) streaming from the Sun (the solar wind) interact with Earth’s magnetic field.

While aurora are generally only visible close to the poles, severe magnetic storms impacting the Earth’s magnetic field can shift them towards the equator. This striking aurora image was taken during a geomagnetic storm that was most likely caused by a coronal mass ejection from the Sun on May 24, 2010. The ISS was located over the Southern Indian Ocean at an altitude of 350 kilometers (220 miles), with the astronaut observer most likely looking towards Antarctica (not visible) and the South Pole.

The aurora has a sinuous ribbon shape that separates into discrete spots near the lower right corner of the image. While the dominant coloration of the aurora is green, there are faint suggestions of red left of image center. Dense cloud cover is dimly visible below the aurora. The curvature of the Earth’s horizon (the limb) is clearly visible, as is the faint blue line of the upper atmosphere directly above it (at image top center). Several stars appear as bright pinpoints against the blackness of space at image top right.

Auroras happen when ions in the solar wind collide with atoms of oxygen and nitrogen in the upper atmosphere. The atoms are excited by these collisions, and they typically emit light as they return to their original energy level. The light creates the aurora that we see. The most commonly observed color of aurora is green, caused by light emitted by excited oxygen atoms at wavelengths centered at 0.558 micrometers, or millionths of a meter. (Visible light is reflected from healthy (green) plant leaves at approximately the same wavelength.) Red aurora are generated by light emitted at a longer wavelength (0.630 micrometers), and other colors such as blue and purple are also sometimes observed.

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http://en.wikipedia.org/wiki/File:Aurora_Australis_From_ISS.JPG

"Aurora Australis" "aurora borealis" "magnetic field" "solar winds" "international space station" iss space "outer space" nasa astronomy "magnetic storm" aurora
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Postcard

Keep in touch with Zazzle custom postcards! Add your favorite image to a blank postcard or say “hi” with a pre-existing design. Save paper and mail a note without wasting envelopes!

  • 4.25" x 5.6" (portrait) or 5.6" x 4.25" (landscape).
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Known as the “aurora australis from international space station postcard”, this custom postcard template is an amazing representation of the creativity in the Zazzle community marketplace. Contributed by a highly gifted Zazzle designer called astronomical, the wonderful aurora borealis postcard design shown above was posted in the Aurora Australis shop category and was tagged: aurora borealis, magnetic field, and aurora australis. The ideal custom postcard for all different types of messages, this aurora australis from international space station design will look fabulous after you've given it your personal touch. Customizable on the front and on the back, this aurora australis from international space station personalized postcard will be a hit with loved ones.

Any customer hunting for aurora or solar winds postcards will certainly love this custom postcard after it has been made with this Zazzle seller's shop's aurora category product. This aurora australis from international space station postcard will certainly be well-received thanks to the proprietary process by which it's made. Printed in full color on professional quality card stock, your custom postcards will look absolutely awesome no matter what is printed on them. Given the numerous amount of possibilities for personalizing this magnetic field design, without a doubt, you'll find an ideal custom postcard to send to anyone.

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Created By astronomical:

Aurora Australis from International Space Station

Aurora Australis Observed From the International Space Station

Among the views of Earth afforded astronauts aboard the International Space Station (ISS), surely one of the most spectacular is of the aurora. These ever-shifting displays of colored ribbons, curtains, rays, and spots are most visible near the North (aurora borealis) and South (aurora australis) Poles as charged particles (ions) streaming from the Sun (the solar wind) interact with Earth’s magnetic field.

While aurora are generally only visible close to the poles, severe magnetic storms impacting the Earth’s magnetic field can shift them towards the equator. This striking aurora image was taken during a geomagnetic storm that was most likely caused by a coronal mass ejection from the Sun on May 24, 2010. The ISS was located over the Southern Indian Ocean at an altitude of 350 kilometers (220 miles), with the astronaut observer most likely looking towards Antarctica (not visible) and the South Pole.

The aurora has a sinuous ribbon shape that separates into discrete spots near the lower right corner of the image. While the dominant coloration of the aurora is green, there are faint suggestions of red left of image center. Dense cloud cover is dimly visible below the aurora. The curvature of the Earth’s horizon (the limb) is clearly visible, as is the faint blue line of the upper atmosphere directly above it (at image top center). Several stars appear as bright pinpoints against the blackness of space at image top right.

Auroras happen when ions in the solar wind collide with atoms of oxygen and nitrogen in the upper atmosphere. The atoms are excited by these collisions, and they typically emit light as they return to their original energy level. The light creates the aurora that we see. The most commonly observed color of aurora is green, caused by light emitted by excited oxygen atoms at wavelengths centered at 0.558 micrometers, or millionths of a meter. (Visible light is reflected from healthy (green) plant leaves at approximately the same wavelength.) Red aurora are generated by light emitted at a longer wavelength (0.630 micrometers), and other colors such as blue and purple are also sometimes observed.

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All Rights Reserved; without: prejudice, recourse or notice (U.C.C. 1-308)

http://en.wikipedia.org/wiki/File:Aurora_Australis_From_ISS.JPG

"Aurora Australis" "aurora borealis" "magnetic field" "solar winds" "international space station" iss space "outer space" nasa astronomy "magnetic storm" aurora

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Product id: 239188399616771504
Made on 6/3/2011 4:07 PM