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The Bruce Murray Space Image Library

Crescent Neptune and Triton

Filed under pretty pictures, amateur image processing, Voyager 1 and 2, Triton, Neptune, global views, many worlds

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Crescent Neptune and Triton Neptune was the last planet Voyager 2 passed. As it departed the system in September 1989, it watched the crescent planet (along with its largest moon) diminish. This photo was taken on September 3, about 9 days after the flyby.

NASA / JPL / Emily Lakdawalla

At such a great distance from the Sun, with so little light, and seeing a crescent (and therefore dimly lit) phase, it's astonishing that Voyager was able to capture any photos at all. Some of its photos were sharper than others. This particular image was composed of three photos captured through clear, blue, and violet filters because they happened to be relatively sharp. Channel mixing was used in order to approximate true color somewhat more closely, and the final color adjusted subjectively to make Neptune and Triton appear their expected colors. So the final color is perhaps more "artistic" than "real," but the presence of clouds on Neptune reflects reality.

Copyright holder: Emily Lakdawalla

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.
Contact us to request publication permission from the copyright holder. Original image data dated on or about September 3, 1989

 

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