File:NH-Pluto-AliceSolarOccultation-20150714-fr.png

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NH-Pluto-AliceSolarOccultation-20150714-fr.png ‎(623 × 496 pixels, file size: 174 KB, MIME type: image/png)

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Français : Cette image montre comment le taux de comptage de l'instrument Alice a changé dans le temps durant les observations du coucher et du lever de soleil. Le taux de comptage est plus important quand la ligne de perception se trouve hors de l'atmosphère, au début et à la fin. L'azote moléculaire (N2) commence à absorber la lumière dans la haute atmosphère de Pluton, réduisant lorsque le vaisseau spatial passe dans l'ombre de la planète. Lorsque l'occultation continue, le méthane et les hydrocarbures atmosphériques peuvent également absorber la lumière du soleil et décroitre le taux de comptage. Quand le vaisseau est entièrement positionné dans l'ombre de PLuton, le taux de comptage passe par zéro. Lorsque le vaisseau spatial progresse vers le lever de soleil, le processus s'inverse.
Date
Source http://pluto.jhuapl.edu/Multimedia/Science-Photos/pics/02_gladstone_02.jpg
Author NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute
Traducteur : Treehill

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Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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current10:06, 18 March 2017Thumbnail for version as of 10:06, 18 March 2017623 × 496 (174 KB)Treehill (talk | contribs)User created page with UploadWizard

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