Aurora over the city of Reykjavik, Iceland, September, 2016.
The aurora colors are yellow-green from oxygen emission at 557.5 nanometers at around 100 - 150 km altitude, and purple from nitrogen emission above that. Visually, the greens were pastel green, the purple was fainter and not distinguished from twilight.
The image was obtained with a
Canon 6D 20-megapixel digital camera and a Sigma 24mm f/1.4 DG HSM Art Lens
with a single 8-second exposure at ISO 800, f/2.8 on the sky and reflection and an 8-second exposure at ISO 800, f/8 for the bright city lights. White balance is daylight. This is a slight crop: a little off the left egde for the clous and a little off the top, about 10%.
For more information on aurora photography, see Aurora Photography.
To learn how to obtain stunning images like this, please visit my Extensive Articles on Photography .
Keywords to this image = aurora iceland nightscapes low-light digital_astro canon_6d
Image ID: iceland-aurora-c09-04-2016-IMG_4330-25.d-c1-1400s.jpg
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Last updated January 25, 2024