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Northern Lights
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NP! ID: 1378672
Title: Northern Lights
File Size: 500 × 330 – 55.48 KB
Created: Sat, 07/26/2008 - 12:26am
Modified: Sat, 07/26/2008 - 12:26am
File Type: image (jpeg)
Licence: None (All rights reserved)
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at 00:48 on July 26th, 2008
This image was taken during a dog sledding expedition near Kiruna, Sweden. The sky initially turned pale green developing into a clearly defined green band across the sky. The band was waving like a cloth banner appearing perpendicular to the horizon reaching overhead then disappearing beyond the horizon behind us.
The band dramatically changed behaviour about an hour after appearing. It was waving quickly but still appeared to be tethered to the two horizons. Then it suddenly snapped at one end and waved around like a flags in the wind. We had clear skies that night and a full moon as captured in this image.
I understood that the northern lights were a result of the sun's cosmic rays hitting our atmosphere and knocking the electrons into lower energy states causing energy (in the form of light) to be released. What is the article saying that is different to this theory? Is there a description what is a magnetotail?
at 08:06 on July 26th, 2008
What an amazing photo! How did u manage to get such a clear image? I mean the stars add so much character to it! I tryed taking photos of the sky at night to capture the stars but i could never get a clear image, either due to the fact i couldnt get the focus right, or the pics turned out really dark.... A couple of tips would be greatly appreciated : ) I use a nikon d50 btw
at 08:35 on July 26th, 2008
I'm no expert on taking northern lights! FWIW here are the details...
EXIF data: Nikon D70 ISO 1600, f/3.5, 20 second exposure at 18mm.
I used a solid Manfrotto tripod for the shot. In retrospect I think I should have used a lower ISO and stopped down to at least f/8 and used a much longer exposure. It may have given me a cleaner image. The whole situation was experimental and reviewing on the LCD. It's not often I take images of something large in the night sky, nevermind the northern lights! :)
at 12:22 on July 28th, 2008
I see... Personally i think its pretty clear as it is. But the thing is, cause it moves around, sort of wiggles, i think a longer exposure wouldve smudged it to much... Ive been trying to take photos of just stars for ages, but they hardly ever come out good. Capturing a shooting star is my goal. Anyways, thanks alot for sharing the secrets mate!