Professor Irwin said: ‘Although the familiar Voyager 2 images of Uranus were published in a form closer to “true” colour, those of Neptune were, in fact, stretched and enhanced, and therefore made artificially too blue.’ In addition, the early Neptune images from Voyager 2 were strongly contrast enhanced to better reveal the clouds, bands, and winds that shape our modern perspective of Neptune. The single-colour images were later recombined to create composite colour images, which were not always accurately balanced to achieve a “true” colour image, and – particularly in the case of Neptune – were often made “too blue”. ![]() ![]() The misconception arose because images captured of both planets during the 20th century – including by NASA’s Voyager 2 mission, the only spacecraft to fly past these worlds – recorded images in separate colours. ![]() However, astronomers have long known that most modern images of the two planets do not accurately reflect their true colours. Professor Patrick Irwin.Professor Irwin and his team found that both planets are in fact a similar shade of greenish blue, despite the commonly-held belief that Neptune is a deep azure and Uranus has a pale cyan appearance.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |