Green Airglow and Cactus Silhouette Incahuasi Island Bolivia
by James Brunker
Title
Green Airglow and Cactus Silhouette Incahuasi Island Bolivia
Artist
James Brunker
Medium
Photograph - Photograph
Description
The Milky Way setting next to a giant cactus on Incahuasi Island in the middle of the Salar de Uyuni in south west Bolivia. The green colour in the sky is airglow or nightglow, caused by various processes in the upper atmosphere (including cosmic radiation, ionization of atoms by the sun's radiation and others). It is often faint or not always visible at all, on this particular night the green colour was vivid and surreal!!
The Salar de Uyuni is the world's largest salt flat, covering 10,582 square km / 4,086 square miles. The huge cactus is an Echinopsis atacamensis (pasacana subspecies). They grow in Bolivia and northern Argentina and are common in the region. In the cold dry climate they only grow at approx 1cm a year, the tallest are well over 10m high......
Photograph © James Brunker. Reproduction, transmission or use in any form (print, website, etc) without prior written permission strictly prohibited.
Uploaded
January 6th, 2018
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Comments (3)
Jan Mulherin
Congratulations!! This beautiful image has been selected to be featured for the week in the “Shadow Silhouettes and Reflections Outdoors” Group Home Page. If enabled, your image will be posted to our group Google+ Page. You are welcome to add a preview of this featured image to the group’s discussion post titled “Featured Images – April 2018” for a permanent display within the group, to share this achievement with others. Thank you for your participation in the group! ~Jan
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