Resumo

DescriciónPhobos colour 2008.jpg	العربية: صورة ملونة للقمر فوبوس أحد أقمار المريخ، التقطت في 23 مارس 2008 بواسطة مارس ريكونيسانس أوربيتر. English: Color image of Phobos, imaged by the Mars Reconnaissance Orbiter on 23 March 2008. The High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter took two images of the larger of Mars' two moons, Phobos, within 10 minutes of each other on 23 March 2008. This is the first, taken from a distance of about 6,800 kilometers (about 4,200 miles). It is presented in color by combining data from the camera's blue-green, red, and near-infrared channels. The illuminated part of Phobos seen in the images is about 21 kilometers (13 miles) across. The most prominent feature in the images is the large crater Stickney in the lower right. With a diameter of 9 kilometers (5.6 miles), it is the largest feature on Phobos. The color data accentuate details not apparent in black-and-white images. For example, materials near the rim of Stickney appear bluer than the rest of Phobos. Based on analogy with materials on our own moon, this could mean this surface is fresher, and therefore younger, than other parts of Phobos. A series of troughs and crater chains is obvious on other parts of the moon. Although many appear radial to Stickney in this image, recent studies from the European Space Agency's Mars Express orbiter indicate that they are not related to Stickney. Instead, they may have formed when material ejected from impacts on Mars later collided with Phobos. The lineated textures on the walls of Stickney and other large craters are landslides formed from materials falling into the crater interiors in the weak Phobos gravity (less than one one-thousandth of the gravity on Earth). In the full-resolution version of this image, a pixel encompasses 6.8 meters (22 feet), providing a resolution (smallest visible feature) of about 20 meters (about 65 feet). The image is in the HiRISE catalog as PSP_007769_9010. NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the Mars Reconnaissance Orbiter for NASA's Science Mission Directorate, Washington. Lockheed Martin Space Systems, Denver, is the prime contractor for the project and built the spacecraft. The High Resolution Imaging Science Experiment is operated by the University of Arizona, Tucson, and the instrument was built by Ball Aerospace & Technologies Corp., Boulder, Colo. Polski: Kolorowa fotografia Fobosa, księżyca Marsa, wykonana przez sondę Mars Reconnaissance Orbiter w dniu 23 marca 2008 roku. Русский: Цветное изображение Фобоса, созданное АМС Mars Reconnaissance Orbiter в 2008 году
Data	23 de marzo de 2008
Orixe	http://photojournal.jpl.nasa.gov/catalog/PIA10368
Autoría	NASA / JPL-Caltech / University of Arizona
Licenza (Reuso deste ficheiro)	Public domainPublic domainfalsefalse Este ficheiro está no dominio público porque foi creado pola NASA. A política do copyright da NASA declara que "o material da NASA non está protexido polos dereitos de autor a non ser que se indique o contrario". (Páxina de políticas do copyright da NASA ou política de uso de imaxes JPL). Avisos: O uso de logos da NASA, insignias e emblemas está restrinxido pola lei 14 CFR 1221 dos EE.UU. A páxina web da NASA proporciona un gran número de imaxes dos soviéticos/ da axencia rusa do espazo e outras axencias espaciais non norteamericanas. Esta non están necesariamente no dominio público. Os materiais do Telescopio Hubble poden ter copyright se non proveñen explicitamente do STScI. [1] Todos os materiais creados polo SOHO teñen copyright e requiren dunha licenza para usos comerciais non educativos. [2] As imaxes destacadas na páxina web do Día da imaxe astronómica (APOD) poden ter copyright. [3]
Outras versións	Similar black and white image, taken about ten minutes later (3,963 × 3,360 pixels, 2.6 MB)
Localización InfoField	http://www.nasa.gov/mission_pages/MRO/multimedia/pia10368.html

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Valoración

Este ficheiro foi a imaxe do día o [[Template:Potd/1-#| de Template:Headings/Month (gl) de 1]]. Esta imaxe é considerada unha das mellores Wikimedia Commons (Imaxes destacadas). Wikipedia  Esta imaxe é considerada unha das mellores da Wikipedia en lingua árabe (صور مختارة).  Esta imaxe é considerada unha das mellores da Wikipedia en lingua inglés (Featured pictures).  Esta imaxe é considerada unha das mellores da Wikipedia en lingua español (Recursos destacados).  Esta imaxe é considerada unha das mellores da Wikipedia en lingua persa (نگاره‌های برگزیده). Se posúe unha imaxe dunha calidade similar e que poida ser publicada baixo unha licenza cos dereitos de autor adecuados, anímese e cárguea, etiquétea e nomínea.

Esta imaxe foi elixida como imaxe do día do 31 de xullo de 2019. O seu pé de foto foi: English: Color image of Phobos, imaged by the Mars Reconnaissance Orbiter on 23 March 2008. Outras linguas: Čeština: Uměle dobarvovaná fotografie marsova měsíce Phobos pořízená sondou Mars Reconnaissance Orbiter dne 23. března 2008. English: Color image of Phobos, imaged by the Mars Reconnaissance Orbiter on 23 March 2008. Español: Imagen en color de Fobos producida por el Mars Reconnaissance Orbiter el 23 de marzo de 2008. Italiano: Immagine a colori di Fobos, ripresa dal Mars Reconnaissance Orbiter il 23 marzo 2008. Magyar: Színes felvétel a Phoboszról, melyet a Mars Reconnaissance Orbiter készített 2008. március 28-án Nederlands: Kleurenopname van Phobos, een van de twee manen van de planeet Mars Polski: Kolorowa fotografia Fobosa, księżyca Marsa, wykonana przez sondę Mars Reconnaissance Orbiter w dniu 23 marca 2008 roku. Português: Imagem colorida de Fobos fotografado pela Mars Reconnaissance Orbiter em 23 de março de 2008. Македонски: Поглед на Фобос — една од двете месечини на Марс. Русский: Цветное изображение Фобоса, созданное АМС Mars Reconnaissance Orbiter в 2008 году. 한국어: 2008년 3월 23일 화성 정찰선이 촬영한 포보스의 사진. 中文（繁體）： :zh:火衛一的彩色影像，由 :zh:火星偵察軌道衛星於2008年3月23日拍攝。

Original caption

The High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter took two images of the larger of Mars' two moons, Phobos, within 10 minutes of each other on March 23, 2008. This is the first, taken from a distance of about 6,800 kilometers (about 4,200 miles). It is presented in color by combining data from the camera's blue-green, red, and near-infrared channels.

The illuminated part of Phobos seen in the images is about 21 kilometers (13 miles) across. The most prominent feature in the images is the large crater Stickney in the lower right. With a diameter of 9 kilometers (5.6 miles), it is the largest feature on Phobos.

The color data accentuate details not apparent in black-and-white images. For example, materials near the rim of Stickney appear bluer than the rest of Phobos. Based on analogy with materials on our own moon, this could mean this surface is fresher, and therefore younger, than other parts of Phobos.

A series of troughs and crater chains is obvious on other parts of the moon. Although many appear radial to Stickney in this image, recent studies from the European Space Agency's Mars Express orbiter indicate that they are not related to Stickney. Instead, they may have formed when material ejected from impacts on Mars later collided with Phobos. The lineated textures on the walls of Stickney and other large craters are landslides formed from materials falling into the crater interiors in the weak Phobos gravity (less than one one-thousandth of the gravity on Earth).

In the full-resolution version of this image, a pixel encompasses 6.8 meters (22 feet), providing a resolution (smallest visible feature) of about 20 meters (about 65 feet). The image is in the HiRISE catalog as PSP_007769_9010.

NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the Mars Reconnaissance Orbiter for NASA's Science Mission Directorate, Washington. Lockheed Martin Space Systems, Denver, is the prime contractor for the project and built the spacecraft. The High Resolution Imaging Science Experiment is operated by the University of Arizona, Tucson, and the instrument was built by Ball Aerospace & Technologies Corp., Boulder.