Logo Planète Astronomie
Télescope chez astroshop
Sauter la navigation
  • Système Solaire
    • Le Système Solaire
    • Le Soleil, notre étoile
      • Photos du Soleil, notre étoile
      • Vidéos du Soleil, notre étoile
    • Planète Mercure
      • Photos de la planète Mercure
      • Vidéos de la planète Mercure
    • Planète Vénus
      • Photos de la planète Vénus
      • Vidéos de la planète Vénus
    • Planète Terre
      • Photos de la planète Terre
      • Vidéos de la planète Terre
    • Planète Mars
      • Photos de la planète Mars
      • Vidéos de la planète Mars
      • Les satellites de Mars
        • Phobos, satellite de Mars
          • Photos de Phobos
        • Deimos, satellite de Mars
          • Photos de Deimos
    • Planète Naine Cérès
      • Photos de la planète naine Cérès
    • Planète Jupiter
      • Photos de la planète Jupiter
      • Vidéos de la planète Jupiter
      • Les satellites de Jupiter
        • Photos des satellites de la planète Jupiter
        • Io, satellite de Jupiter
          • Photos de Io
        • Europe, satellite de Jupiter
          • Photos de Europe
        • Ganymède, satellite de Jupiter
          • Photos de Ganymède
        • Callisto, satellite de Jupiter
          • Photos de Callisto
    • Planète Saturne
      • Photos de la planète Saturne
      • Vidéos de la planète Saturne
      • Les anneaux de Saturne
        • Photos des anneaux de Saturne
      • Les satellites de Saturne
        • Photos des satellites de Saturne
        • Satellites mineurs de Saturne
          • Photos des satellites mineurs de Saturne
        • Mimas, satellite de Saturne
          • Photos de Mimas
        • Encelade, satellite de Saturne
          • Photos d'Encelade
        • Téthys, satellite de Saturne
          • Photos de Téthys
        • Dioné, satellite de Saturne
          • Photos de Dioné
        • Rhéa, satellite de Saturne
          • Photos de Rhéa
        • Japet, satellite de Saturne
          • Photos de Japet
        • Titan, satellite de Saturne
          • Photos de Titan
    • Planète Uranus
      • Photos de la planète Uranus
      • Vidéos de la planète Uranus
      • Les anneaux d'Uranus
        • Photos des anneaux d'Uranus
      • Les satellites d'Uranus
        • Photos des satellites d'Uranus
        • Satellites mineurs d'Uranus
          • Photos des satellites mineurs d'Uranus
        • Miranda, satellite d'Uranus
          • Photos de Miranda
        • Ariel, satellite d'Uranus
          • Photos d'Ariel
        • Umbriel, satellite d'Uranus
          • Photos d'Umbriel
        • Titania, satellite d'Uranus
          • Photos de Titania
        • Obéron, satellite d'Uranus
          • Photos de Obéron
    • Planète Neptune
      • Photos de la planète Neptune
      • Vidéos de la planète Neptune
      • Les satellites de Neptune
        • Photos des satellites de Neptune
        • Satellites mineurs de Neptune
          • Photos des satellites mineurs de Neptune
        • Triton, satellite de Neptune
          • Photos de Triton
    • Planète naine Pluton
      • Photos de la planète naine Pluton
      • Vidéos de la planète naine Pluton
      • Les satellites de Pluton
        • Photos de Pluton, Charon, Nix, Hydra
    • Planète naine Eris
    • Planète naine Makemake
    • Planète naine Haumea
  • Exoplanètes
    • Exoplanètes
    • Exoplanètes Kepler
  • Photos d'astronomie
    • Photos du Soleil, notre étoile
    • Photos de la planète Mercure
    • Photos de la planète Vénus
    • Photos de la planète Terre
      • Photos de la Lune
    • Photos de la planète naine Cérès
    • Photos de la planète Mars
      • Galerie de photos de la planète Mars
      • Photos de Phobos, satellite de Mars
      • Photos de Deimos, satellite de Mars
    • Photos de la planète Jupiter
      • Photos des anneaux de Jupiter
      • Photos des satellites de Jupiter
      • Photos de Io, satellite de Jupiter
      • Photos de Europe, satellite de Jupiter
      • Photos de Ganymède, satellite de Jupiter
      • Photos de Callisto, satellite de Jupiter
    • Photos de la planète Saturne
      • Photos des anneaux de Saturne
      • Photos des satellites de Saturne
      • Photos des satellites mineurs de Saturne
      • Photos de Mimas, satellite de Saturne
      • Photos de Encelade, satellite de Saturne
      • Photos de Téthys, satellite de Saturne
      • Photos de Dioné, satellite de Saturne
      • Photos de Rhéa, satellite de Saturne
      • Photos de Japet, satellite de Saturne
      • Photos de Titan, satellite de Saturne
    • Photos de la planète Uranus
      • Photos des anneaux de Uranus
      • Photos des satellites de Uranus
      • Photos de Ariel, satellite de Uranus
      • Photos de Miranda, satellite de Uranus
      • Photos de Oberon, satellite de Uranus
      • Photos de Titania, satellite de Uranus
      • Photos de Umbriel, satellite de Uranus
    • Photos de la planète Neptune
      • Photos des anneaux de Neptune
      • Photos des satellites de Neptune
      • Photos de Néréide, satellite de Neptune
      • Photos de Triton, satellite de Neptune
    • Photos de la planète Pluton
      • Photos des satellites de Pluton
    • Photos de la comète Hartley 2
  • Vidéos d'astronomie
    • Vidéos astro : le Système Solaire
      • Vidéos : le Système Solaire
      • Vidéos : le Soleil, notre étoile
      • Vidéos de la planète Mercure
      • Vidéos de la planète Vénus
      • Vidéos de la planète Terre
        • Documentaires et vidéos sur la Lune
      • Vidéos de la planète Mars
      • Vidéos de la planète Jupiter
        • Vidéos sur Io, satellite de Jupiter
      • Vidéos de la planète Saturne
        • Vidéos des anneaux de Saturne
        • Vidéos des satellites de Saturne
        • Vidéos de Titan, satellite de Saturne
      • Vidéos de la planète Uranus
      • Vidéos de la planète Neptune
      • Vidéos de la planète Pluton
      • Vidéos sur les comètes
    • Vidéos astro : l'Univers
      • Vidéos astro : les trous noirs
      • Vidéos astro : les galaxies
    • Vidéos astro : Astrophysique
      • Vidéos astro : théories cosmologiques
        • Vidéos astro : le Big Bang
    • Vidéos d'astronomie sur Dailymotion
    • Vidéos d'astronomie sur Youtube
    • Vidéos d'astronomie de l'INA
    • Extraits de films
      • Extrait de Voyage autour du Soleil
    • Rotations de planètes
    • E=M6
    • Superscience
    • La conquête spatiale
      • La conquête spatiale : La Lune
  • Outils
    • Annuaire Planète Astronomie
      • Présentation de l'Annuaire
      • Liens d'astronomie
    • Position des planètes
    • Position actuelle de l'ISS
    • Vidéo en direct de l'ISS
    • Lexique d'astronomie
    • Flux RSS des sites d'astronomie
    • Google Moon : carte lunaire
    • Google Mars : carte de Mars
    • Google Sky : explorez l'Univers
    • Youtube : Planète Astronomie
    • Planétarium
  • Dossiers
    • Télescope : Guide du débutant
    • Le grossissement en astronomie
    • Acheter un télescope ou une lunette d'astronomie
    • L'Univers en musique
    • La taille de l'Univers
    • Le magnétisme dans l'Univers
    • Les étoiles
    • Missions d'exploration spatiales
    • La Conquête Spatiale
  • New !
  • Forum d'astronomie
 
Astronomie sur Planète Astronomie
Phobos, satellite de Mars
Phobos, satellite de Mars
Sauter la navigation
  • Planète Mars
  • Les satellites de Mars
  • Photos de Phobos
  • Deimos, satellite de Mars
 
En direct du forum
  • La vitesse de la lumière. Voir le sujet du forum d'astronomie : « La vitesse de la lumière. »
  • Les probabilités d'une autre vie dans l'univers. Voir le sujet du forum d'astronomie : « Les probabilités d'une autre vie dans l'univers. »
  • Meilleurs Telescopes Intelligents sur le marche Voir le sujet du forum d'astronomie : « Meilleurs Telescopes Intelligents sur le marche »
  • Question pratique et sécuritaire ! Voir le sujet du forum d'astronomie : « Question pratique et sécuritaire ! »
  • Matière noire et champs de l'univers observable Voir le sujet du forum d'astronomie : « matière noire et champs de l'univers observable »
  • Repenser l'Ether est il envisageable Voir le sujet du forum d'astronomie : « Repenser l'Ether est il envisageable »
  • Matière noire et univers observable Voir le sujet du forum d'astronomie : « matière noire et univers observable »
  • A vendre Télescope PERL Maksutov Arietis 102/1300 EQ2 Voir le sujet du forum d'astronomie : « A vendre Télescope PERL Maksutov Arietis 102/1300 EQ2 »
  • Système de communication quantique basé sur la détection corrélée de décohérence induite ? Voir le sujet du forum d'astronomie : « Système de communication quantique basé sur la détection corrélée de décohérence induite ? »
  • Face cachée de la Lune Voir le sujet du forum d'astronomie : « Face cachée de la Lune »
  • Titan et le mont Lamonsou Voir le sujet du forum d'astronomie : « Titan et le mont Lamonsou »
  • HELP - problème de matos débutant Voir le sujet du forum d'astronomie : « HELP - problème de matos débutant »
  • Vends Telescope Meade ETX125PE Voir le sujet du forum d'astronomie : « Vends Telescope Meade ETX125PE »
  • Les trou noir comme mécanisme de régulateur de l'espace temps Voir le sujet du forum d'astronomie : « Les trou noir comme mécanisme de régulateur de l'espace temps »
  • Théorie de la Gravité Quantique Möbienne Voir le sujet du forum d'astronomie : « Théorie de la Gravité Quantique Möbienne »
  • VENTE LUNETTE TEC 140 ET ACCESSOIRES Voir le sujet du forum d'astronomie : « VENTE LUNETTE TEC 140 ET ACCESSOIRES »
  • Lunette skywatcher 120/1000 eq3 synscan goto 400€ a saisir Voir le sujet du forum d'astronomie : « Lunette skywatcher 120/1000 eq3 synscan goto 400€ a saisir »
  • 8-Annexes : Les expertises mathématiques de Gémini Voir le sujet du forum d'astronomie : « 8-Annexes : Les expertises mathématiques de Gémini »
  • Vente télescope Celestron Utima 8 Voir le sujet du forum d'astronomie : « Vente télescope Celestron Utima 8 »
  • Tache blanche Voir le sujet du forum d'astronomie : « Tache blanche »
  • Les Pyramides de Gizeh et Porte des étoiles Voir le sujet du forum d'astronomie : « Les Pyramides de Gizeh et Porte des étoiles »
  • Paradoxe de l'évaporation et trou de vers Voir le sujet du forum d'astronomie : « Paradoxe de l'évaporation et trou de vers »
  • Possibilités des voyages interstellaires ou mondes clos Voir le sujet du forum d'astronomie : « Possibilités des voyages interstellaires ou mondes clos »
  • Montage et mise en station Voir le sujet du forum d'astronomie : « montage et mise en station »
  • Univers enchevétrés et masse manquante de l'Univers mesurable Voir le sujet du forum d'astronomie : « Univers enchevétrés et masse manquante de l'Univers mesurable »
  • L'équation E=mc² dépendant de la vitesse Voir le sujet du forum d'astronomie : « L'équation E=mc² dépendant de la vitesse »
  • Le magnétisme sous l'oeil de la relativité restreinte Voir le sujet du forum d'astronomie : « Le magnétisme sous l'oeil de la relativité restreinte »
  • Quel télescope pour un enfant ? Voir le sujet du forum d'astronomie : « Quel télescope pour un enfant ? »
  • Télescope N 250/1200 PDS Explorer avec monture EQ6-R Pro SynScan GoTo Voir le sujet du forum d'astronomie : « Télescope N 250/1200 PDS Explorer avec monture EQ6-R Pro SynScan GoTo »
  • Avis achat de télescope Voir le sujet du forum d'astronomie : « Avis achat de télescope »
  • Contraction relativiste des longueurs Voir le sujet du forum d'astronomie : « Contraction relativiste des longueurs »
  • Étoiles qui changent brutalement de luminosité et couleur Voir le sujet du forum d'astronomie : « Étoiles qui changent brutalement de luminosité et couleur »
  • Bon réfracteur pour de l’observation visuelle Voir le sujet du forum d'astronomie : « Bon réfracteur pour de l’observation visuelle »
  • Balise [url] Voir le sujet du forum d'astronomie : « Balise [url] »
  • Vieux Celestron C11 ou Dobson 254 récent Voir le sujet du forum d'astronomie : « Vieux Celestron C11 ou Dobson 254 récent »
  • Conseils setup complet astrophoto Voir le sujet du forum d'astronomie : « Conseils setup complet astrophoto »
  • Conseil d'achat Voir le sujet du forum d'astronomie : « Conseil d'achat »
  • Premières photos help ! Voir le sujet du forum d'astronomie : « Premières photos help ! »
  • Lumière étrange dans le ciel en Charente-Maritime Voir le sujet du forum d'astronomie : « Lumière étrange dans le ciel en Charente-Maritime »
  • Comment faire des images de calibration avec caméra OSC Voir le sujet du forum d'astronomie : « Comment faire des images de calibration avec caméra OSC »
  • Vends Monture Skywatcher Star Adventurer 2i WIFI, Pack AstroPhoto complet avec Trépied nomade Voir le sujet du forum d'astronomie : « Vends  Monture Skywatcher Star Adventurer 2i WIFI, Pack AstroPhoto complet avec Trépied nomade »
  • Cherche piece Voir le sujet du forum d'astronomie : « Cherche piece »
  • Vends Lunette solaire LS50T HAlpha B400 Lunt Solar, 1100 euros Voir le sujet du forum d'astronomie : « Vends Lunette solaire LS50T HAlpha B400 Lunt Solar, 1100 euros »
  • Vends Monture Azimutale Skywatcher SolarQuest, 350 euros Voir le sujet du forum d'astronomie : « Vends Monture Azimutale Skywatcher SolarQuest, 350 euros »
  • Le trou noir au centre de la voie lactée Voir le sujet du forum d'astronomie : « Le trou noir au centre de la voie lactée »
  • Est-ce une météorite ? Voir le sujet du forum d'astronomie : « Est-ce une météorite ? »
  • Constance de la vitesse de la lumiere Voir le sujet du forum d'astronomie : « constance de la vitesse de la lumiere »
  • Télescope 150/1400 EQ4 Mizar | Nature & Découvertes Voir le sujet du forum d'astronomie : « Télescope 150/1400 EQ4 Mizar | Nature & Découvertes »
  • Avis achat jumelle Voir le sujet du forum d'astronomie : « avis achat jumelle »
  • Télescope Télescope Dobson 254/1200 GoTo Voir le sujet du forum d'astronomie : « Télescope Télescope Dobson 254/1200 GoTo »
Remonter dans les sujets du forum d'astronomie de Planète Astronomie Remonter dans les sujets du forum d'astronomie de Planète Astronomie
Contacter le site d'astronomie Planète AstronomieContacter Planète Astronomie
Plan du site d'astronomie Planète AstronomiePlan du site Planète Astronomie
Comment participer à Planète AstronomieParticiper à Planète Astronomie
A propos de Planète AstronomieA propos de Planète Astronomie
Télescope chez astroshop

Galerie de photos de Phobos, satellite de la planète Mars

Mars_Phobos_1.jpg
Mars_Phobos_1.jpg
Mars_Phobos_2.jpg
Mars_Phobos_2.jpg
Mars_Phobos_Stickney.jpg
Mars_Phobos_Stickney.jpg
Mars_System.jpg
Mars_System.jpg
phobos deimos diff
<h1>PIA00078:  Gaspra, Deimos, and Phobos Comparison</h1><div class="PIA00078" lang="en" style="width:293px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;">This montage shows asteroid 951 Gaspra (top) compared with Deimos (lower left) and Phobos (lower right), the moons of Mars. The three bodies are shown at the same scale and nearly the same lighting conditions. Gaspra is about 17 kilometers (10 miles) long. All three bodies have irregular shapes, due to past catastrophic conditions. However their surfaces appear remarkably different, possibly because of differences in composition but most likely because of very different impact histories. The Phobos and Deimos images were obtained by the Viking Orbiter spacecraft in 1977; the Gaspra image is the best of a series obtained by the Galileo spacecraft on October 29, 1991. Galileo is scheduled to add the detailed view of another asteroid when it flies by Ida in August 1993. The Galileo project, whose primary mission is the exploration of the Jupiter system in 1995-97, is managed for NASA's Office of Space Science and Applications by the Jet Propulsion Laboratory.<br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA00078" onclick="window.open(this.href); return false;" title="Voir l'image 	 PIA00078:  Gaspra, Deimos, and Phobos Comparison	  sur le site de la NASA">Voir l'image 	 PIA00078:  Gaspra, Deimos, and Phobos Comparison	  sur le site de la NASA.</a></div>
PIA00078: Gaspra, Deimos, and Phobos Comparison
<h1>PIA01332:  MOC Image of Phobos with TES Temperature Overlay</h1><div class="PIA01332" lang="en" style="width:462px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;">This image of Phobos, the inner and larger of the two moons of Mars, was taken by the Mars Global Surveyor on August 19, 1998. The Thermal Emission Spectrometer (TES) measured the brightness of thermal radiation at the same time the camera acquired this image. By analyzing the brightness, TES scientists could deduce the various fractions of the surface exposed to the Sun and their temperatures. This preliminary analysis shows that the surface temperature, dependent on slope and particle size, varies from a high of +25° F (-4° C) on the most illuminated slopes to -170° F (-112° C) in shadows. This large difference, and the fact that such differences can be found in close proximity, adds support to the notion that the surface of Phobos is covered by very small particles.<p>Malin Space Science Systems, Inc. and the California Institute of Technology built the MOC using spare hardware from the Mars Observer mission. MSSS operates the camera from its facilities in San Diego, CA. The Thermal Emission Spectrometer is operated by Arizona State University and was built by Raytheon Santa Barbara Remote Sensing. The Jet Propulsion Laboratory's Mars Surveyor Operations Project operates the Mars Global Surveyor spacecraft with its industrial partner, Lockheed Martin Astronautics, from facilities in Pasadena, CA and Denver, CO.<br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA01332" onclick="window.open(this.href); return false;" title="Voir l'image 	 PIA01332:  MOC Image of Phobos with TES Temperature Overlay	  sur le site de la NASA">Voir l'image 	 PIA01332:  MOC Image of Phobos with TES Temperature Overlay	  sur le site de la NASA.</a></div>
PIA01332: MOC Image of Phobos with TES Temperature Overlay
<h1>PIA01333:  High-Resolution MOC Image of Phobos</h1><div class="PIA01333" lang="en" style="width:683px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;">This image of Phobos, the inner and larger of the two moons of Mars, was taken by the Mars Global Surveyor on August 19, 1998. This image shows a close-up of the largest crater on Phobos, Stickney, 10 kilometers (6 miles) in diameter. Individual boulders are visible on the near rim of the crater, and are presumed to be ejecta blocks from the impact that formed Stickney. Some of these boulders are enormous - more than 50 meters (160 feet) across. Also crossing at and near the rim of Stickney are shallow, elongated depressions called grooves. This crater is nearly half the size of Phobos and these grooves may be fractures caused by its formation. Phobos was observed by both the Mars Orbiter Camera (MOC) and Thermal Emission Spectrometer (TES). This image is one of the highest resolution images (4 meters or 13 feet per picture element or pixel) ever obtained of the Martian satellite.<p>Malin Space Science Systems, Inc. and the California Institute of Technology built the MOC using spare hardware from the Mars Observer mission. MSSS operates the camera from its facilities in San Diego, CA. The Thermal Emission Spectrometer is operated by Arizona State University and was built by Raytheon Santa Barbara Remote Sensing. The Jet Propulsion Laboratory's Mars Surveyor Operations Project operates the Mars Global Surveyor spacecraft with its industrial partner, Lockheed Martin Astronautics, from facilities in Pasadena, CA and Denver, CO.<br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA01333" onclick="window.open(this.href); return false;" title="Voir l'image 	 PIA01333:  High-Resolution MOC Image of Phobos	  sur le site de la NASA">Voir l'image 	 PIA01333:  High-Resolution MOC Image of Phobos	  sur le site de la NASA.</a></div>
PIA01333: High-Resolution MOC Image of Phobos
<h1>PIA01334:  High-Resolution MOC Image of Phobos with Graphics Overlay</h1><div class="PIA01334" lang="en" style="width:273px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;">This image of Phobos, the inner and larger of the two moons of Mars, was taken by the Mars Global Surveyor on August 19, 1998. The white boxes indicate the location of the subframes or close-ups: that on the left is C and that on the right is D. Each box is 1.92 kilometers (1.19 miles) square. The image shows several new features of this lumpy moon -- features that are associated with the prominent crater seen in the upper left quarter of the image. This is the largest crater on Phobos, Stickney, 10 kilometers (6 miles) in diameter. Individual boulders are visible on the near rim of the crater (D), and are presumed to be ejecta blocks from the impact that formed Stickney. Some of these boulders are enormous - more than 50 meters (160 feet) across. Also crossing at and near the rim of Stickney are shallow, elongated depressions called grooves. This crater is nearly half the size of Phobos and these grooves may be fractures caused by its formation. The far wall of the crater shows lighter and darker streaks going down the slopes (C). Phobos was observed by both the Mars Orbiter Camera (MOC) and Thermal Emission Spectrometer (TES). This image is one of the highest resolution images (4 meters or 13 feet per picture element or pixel) ever obtained of the Martian satellite.<p>Malin Space Science Systems, Inc. and the California Institute of Technology built the MOC using spare hardware from the Mars Observer mission. MSSS operates the camera from its facilities in San Diego, CA. The Thermal Emission Spectrometer is operated by Arizona State University and was built by Raytheon Santa Barbara Remote Sensing. The Jet Propulsion Laboratory's Mars Surveyor Operations Project operates the Mars Global Surveyor spacecraft with its industrial partner, Lockheed Martin Astronautics, from facilities in Pasadena, CA and Denver, CO.<br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA01334" onclick="window.open(this.href); return false;" title="Voir l'image 	 PIA01334:  High-Resolution MOC Image of Phobos with Graphics Overlay	  sur le site de la NASA">Voir l'image 	 PIA01334:  High-Resolution MOC Image of Phobos with Graphics Overlay	  sur le site de la NASA.</a></div>
PIA01334: High-Resolution MOC Image of Phobos with Graphics Overlay
<h1>PIA01335:  High-Resolution MOC Image of Phobos' Stickney Crater</h1><div class="PIA01335" lang="en" style="width:480px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;">This image of Phobos, the inner and larger of the two moons of Mars, was taken by the Mars Global Surveyor on August 19, 1998. This image is a close-up of the far wall of the Stickney crater, 10 kilometers (6 miles) in diameter, that is the largest crater on Phobos. This image shows lighter and darker streaks going down the slopes (C). The presence of material of different brightness on the far crater slopes and in some of the grooves shows that the satellite is heterogeneous (that is, it is made of a mixture of different types of materials). The motion of debris down slopes is guided by gravity, which is only about 1/1000th that of the Earth -- e.g., a 68-kilogram (150-pound) person would weigh only about 57 grams (2 ounces) on Phobos. Phobos was observed by both the Mars Orbiter Camera (MOC) and Thermal Emission Spectrometer (TES). This image is one of the highest resolution images (4 meters or 13 feet per picture element or pixel) ever obtained of the Martian satellite.<p>Malin Space Science Systems, Inc. and the California Institute of Technology built the MOC using spare hardware from the Mars Observer mission. MSSS operates the camera from its facilities in San Diego, CA. The Thermal Emission Spectrometer is operated by Arizona State University and was built by Raytheon Santa Barbara Remote Sensing. The Jet Propulsion Laboratory's Mars Surveyor Operations Project operates the Mars Global Surveyor spacecraft with its industrial partner, Lockheed Martin Astronautics, from facilities in Pasadena, CA and Denver, CO.<br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA01335" onclick="window.open(this.href); return false;" title="Voir l'image 	 PIA01335:  High-Resolution MOC Image of Phobos' Stickney Crater	  sur le site de la NASA">Voir l'image 	 PIA01335:  High-Resolution MOC Image of Phobos' Stickney Crater	  sur le site de la NASA.</a></div>
PIA01335: High-Resolution MOC Image of Phobos' Stickney Crater
<h1>PIA01336:  High-Resolution MOC Image of Phobos' Face</h1><div class="PIA01336" lang="en" style="width:480px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;">This image of Phobos, the inner and larger of the two moons of Mars, was taken by the Mars Global Surveyor on August 19, 1998. The minimum distance between the spacecraft and Phobos was 1,080 kilometers (671 miles). Phobos was observed by both the Mars Orbiter Camera (MOC) and Thermal Emission Spectrometer (TES). This image is one of the highest resolution images (4 meters or 13 feet per picture element or pixel) ever obtained of the Martian satellite. The image shows several new features of this lumpy moon -- features that are associated with the prominent crater seen in the upper left quarter of the image. This is the largest crater on Phobos, Stickney, 10 kilometers (6 miles) in diameter. Individual boulders are visible on the near rim of the crater (D), and are presumed to be ejecta blocks from the impact that formed Stickney. Some of these boulders are enormous - more than 50 meters (160 feet) across. Also crossing at and near the rim of Stickney are shallow, elongated depressions called grooves. This crater is nearly half the size of Phobos and these grooves may be fractures caused by its formation. The far wall of the crater shows lighter and darker streaks going down the slopes (C). The presence of material of different brightness on the far crater slopes and in some of the grooves shows that the satellite is heterogeneous (that is, it is made of a mixture of different types of materials). The motion of debris down slopes is guided by gravity, which is only about 1/1000th that of the Earth -- e.g., a 68-kilogram (150- pound) person would weigh only about 57 grams (2 ounces) on Phobos. Previous images from the Viking spacecraft in the 1970's were not of sufficient resolution to show the effectiveness of gravity on Phobos in moving material down slopes.<p>Malin Space Science Systems, Inc. and the California Institute of Technology built the MOC using spare hardware from the Mars Observer mission. MSSS operates the camera from its facilities in San Diego, CA. The Thermal Emission Spectrometer is operated by Arizona State University and was built by Raytheon Santa Barbara Remote Sensing. The Jet Propulsion Laboratory's Mars Surveyor Operations Project operates the Mars Global Surveyor spacecraft with its industrial partner, Lockheed Martin Astronautics, from facilities in Pasadena, CA and Denver, CO.<br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA01336" onclick="window.open(this.href); return false;" title="Voir l'image 	 PIA01336:  High-Resolution MOC Image of Phobos' Face	  sur le site de la NASA">Voir l'image 	 PIA01336:  High-Resolution MOC Image of Phobos' Face	  sur le site de la NASA.</a></div>
PIA01336: High-Resolution MOC Image of Phobos' Face
<h1>PIA03612:  Spirit View of Phobos Eclipse, Sol 675</h1><div class="PIA03612" lang="en" style="width:392px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p><a href="/figures/PIA03612_fig1.jpg"></a><b><br />Annotated Spirit View of Phobos Eclipse, Sol 675</b></p><p>NASA's Mars Exploration Rover Spirit observed the Martian moon Phobos entering the shadow of Mars during the night of the rover's 675th sol (Nov. 27, 2005). The panoramic camera captured 16 images, spaced 10 seconds apart, covering the period from when Phobos was in full sunlight to when it was entirely in shadow. As with our own Moon during lunar eclipses on Earth, even when in the planet's shadow, Phobos was not entirely dark. The small amount of light still visible from Phobos is a kind of "Mars-shine" -- sunlight reflected through Mars' atmosphere and into the shadowed region.</p><p>This view is a time-lapse composite of images taken 20 seconds apart, showing the movement of Phobos from left to right. (At 10 seconds apart, the images of the moon overlap each other.) Scientists are using information about the precise timing of Martian moon eclipses gained from observations such as these to refine calculations about the orbital path of Phobos. The precise position of Phobos will be important to any future spacecraft taking detailed pictures of the moon or landing on its surface.</p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA03612" onclick="window.open(this.href); return false;" title="Voir l'image 	 PIA03612:  Spirit View of Phobos Eclipse, Sol 675	  sur le site de la NASA">Voir l'image 	 PIA03612:  Spirit View of Phobos Eclipse, Sol 675	  sur le site de la NASA.</a></div>
PIA03612: Spirit View of Phobos Eclipse, Sol 675
<h1>PIA04521:  Martian Moon, Phobos</h1><div class="PIA04521" lang="en" style="width:799px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;">MGS MOC Release No. MOC2-362, 16 May 2003<p>Mars has two satellites, Phobos and Deimos. In August and September, 1998, the Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) had four opportunities for close fly-bys of the inner moon, Phobos. This spectacular view, taken from the MOC archives of over 123,000 images, shows the large crater, Stickney, toward the upper right. Grooves, or troughs, radiate outward from Stickney and are known from Viking and Mariner 9 images to be prevalent all over the surface of Phobos. Sunlight illuminates the scene from the upper right. Another view of Phobos from 1998 can be seen in: MOC2-66, 11 September 1998, "Phobos."<p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA04521" onclick="window.open(this.href); return false;" title="Voir l'image 	 PIA04521:  Martian Moon, Phobos	  sur le site de la NASA">Voir l'image 	 PIA04521:  Martian Moon, Phobos	  sur le site de la NASA.</a></div>
PIA04521: Martian Moon, Phobos
<h1>PIA04589:  Phobos Over the Martian Limb</h1><div class="PIA04589" lang="en" style="width:93px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p><a href="/figures/PIA04589_context_lg.jpg"></a>MOC Wide Angle View<p><a href="/figures/PIA04589_phobos_lg.jpg"></a>MOC Narrow Angle Camera View<br><p>MGS MOC Release No. MOC2-400, 23 June 2003<p>Mars has two natural satellites, or moons, Phobos and Deimos. On 1 June 2003, the Mars Global Surveyor (MGS) spacecraft was slewed eastward to capture these views of the inner moon, Phobos, shortly before it set over the afternoon limb. Phobos orbits Mars about 3 times a day at an average distance of 9,378 km (5,828 mi). About 0.006 times the size of Earth's Moon, Phobos is a potato-shaped object with dimensions approximately 27 by 22 by 18 kilometers (about 17 by 14 by 11 miles).<p>The first picture shown here is a color composite of four MGS Mars Orbiter Camera (MOC) wide angle images; the second is the same as the first, but indicates the location of Phobos. The third view is a MOC narrow angle image, taken at the same time as the wide angle views, showing details on the surface of the tiny moon.<p>Phobos is one of the darkest objects in the Solar System. Thus, four wide angle images were obtained to make the picture of Phobos over the martian limb: a pair of red and blue wide angle images was acquired for the limb, and a pair of separate images were required to see Phobos. The wide angle images illustrate the fact that Phobos is mostly colorless (dark gray); the faint orange/red hue in the wide angle picture is a combination of slight differences in the focal lengths of the blue and red cameras and the orange/red illumination provided by reflection of sunlight off Mars. To a person standing on Phobos, the red planet would fill most of the sky.<p>The high resolution image (bottom) was taken at the same time as the wide angle views. MGS was about 9,670 kilometers (6,010 miles) from Phobos when the picture was taken. At this distance, the image resolution is about 36 meters (470 ft.) per pixel; the maximum dimension of Phobos as seen in this image (the diagonal from lower left to upper right) is just over 24 km (15 mi). This is the "trailing" hemisphere, the part of Phobos that faces opposite the direction that the moon orbits Mars. This is a part of Phobos that was not seen by MOC in 1998, when MGS made several close flybys of the tiny moon.<p>The rows of grooves and aligned pits on Phobos are related to, and were probably caused by, a large meteor impact that occurred on the side of Phobos that is not seen here. That large crater, Stickney, was named for the maiden name of the wife of the astronomer that discovered Phobos and the other martian satellite, Deimos, in 1877, Asaph Hall.<p>Examples, with descriptive captions, of the views of Phobos obtained by MOC in 1998 can be seen at:<p><a href="http://www.msss.com/mars_images/moc/9_11_98_phobos_rel/">http://www.msss.com/mars_images/moc/9_11_98_phobos_rel/</a><a href="http://www.msss.com/mars_images/moc/2003/05/16/">http://www.msss.com/mars_images/moc/2003/05/16/</a><p>All of the previous MOC images of Phobos are available in the MOC Gallery at:<p><a href="http://www.msss.com/moc_gallery/ab1_m04/natables/na999.html">http://www.msss.com/moc_gallery/ab1_m04/natables/na999.html</a><a href="http://www.msss.com/moc_gallery/ab1_m04/watables/wa999.html">http://www.msss.com/moc_gallery/ab1_m04/watables/wa999.html</a><p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA04589" onclick="window.open(this.href); return false;" title="Voir l'image 	 PIA04589:  Phobos Over the Martian Limb	  sur le site de la NASA">Voir l'image 	 PIA04589:  Phobos Over the Martian Limb	  sur le site de la NASA.</a></div>
PIA04589: Phobos Over the Martian Limb
PIA04589_phobos_lg.jpg
PIA04589_phobos_lg.jpg
<h1>PIA06335:  Phobos Viewed from Mars</h1><div class="PIA06335" lang="en" style="width:700px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p>Taking advantage of extra solar energy collected during the day, NASA's Mars Exploration Rover Spirit settled in for an evening of stargazing, photographing the two moons of Mars as they crossed the night sky. The first two images in this sequence show gradual enhancements in the surface detail of Mars' largest moon, Phobos, made possible through a combination technique known as "stacking." In "stacking," scientists use a mathematical process known as Laplacian sharpening to reinforce features that appear consistently in repetitive images and minimize features that show up only intermittently. In this view of Phobos, the large crater named Stickney is just out of sight on the moon's upper right limb.</p><p>Spirit acquired the first two images with the panoramic camera on the night of sol 585 (Aug. 26,2005). The far right image of Phobos, for comparison, was taken by the High Resolution Stereo Camera on Mars Express, a European Space Agency orbiter. The third image in this sequence was derived from the far right image by making it blurrier for comparison with the panoramic camera images to the left. More information about the Mars Express image is available at <a href="http://www.esa.int/SPECIALS/Mars_Express/SEM21TVJD1E_1.html">http://www.esa.int/SPECIALS/Mars_Express/SEM21TVJD1E_1.html"</a></p><p>Scientists will use images of the two moons to better map their orbital positions, learn more about their composition, and monitor the presence of nighttime clouds or haze.</p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA06335" onclick="window.open(this.href); return false;" title="Voir l'image 	 PIA06335:  Phobos Viewed from Mars	  sur le site de la NASA">Voir l'image 	 PIA06335:  Phobos Viewed from Mars	  sur le site de la NASA.</a></div>
PIA06335: Phobos Viewed from Mars
<h1>PIA06336:  The Two Moons of Mars as Seen from Mars</h1><div class="PIA06336" lang="en" style="width:800px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p>Taking advantage of extra solar energy collected during the day, NASA's Mars Exploration Rover Spirit settled in for an evening of stargazing, photographing the two moons of Mars as they crossed the night sky. "It is incredibly cool to be running an observatory on another planet," said planetary scientist Jim Bell of Cornell University, Ithaca, N.Y., lead scientist for the panoramic cameras on Spirit and Opportunity. This time-lapse composite, acquired the evening of Spirit's martian sol 585 (Aug. 26, 2005) from a perch atop "Husband Hill" in Gusev Crater, shows Phobos, the brighter moon, on the right, and Deimos, the dimmer moon, on the left. Tiny streaks mark the trails of background stars moving across the sky or the impact of cosmic rays lighting up random groups of pixels in the image. </p><p>Scientists will use images of the two moons to better map their orbital positions, learn more about their composition, and monitor the presence of nighttime clouds or haze. Spirit took the five images that make up this composite using the panoramic camera's broadband filter, which was designed specifically for acquiring images under low-light conditions.</p><br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA06336" onclick="window.open(this.href); return false;" title="Voir l'image 	 PIA06336:  The Two Moons of Mars as Seen from Mars	  sur le site de la NASA">Voir l'image 	 PIA06336:  The Two Moons of Mars as Seen from Mars	  sur le site de la NASA.</a></div>
PIA06336: The Two Moons of Mars as Seen from Mars
<h1>PIA10366:  Phobos from 6,800 Kilometers</h1><div class="PIA10366" lang="en" style="width:800px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p>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). The illuminated part of Phobos seen in the images is about 21 kilometers (13 miles) across.</p><p>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. 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).</p><p>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). Although the image is displayed here in black and white, data from HiRISE's three color channels were used to give higher signal-to-noise, thereby increasing detail. The image is in the HiRISE catalog as PSP_007769_9010.</p><p>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.<br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA10366" onclick="window.open(this.href); return false;" title="Voir l'image 	 PIA10366:  Phobos from 6,800 Kilometers	  sur le site de la NASA">Voir l'image 	 PIA10366:  Phobos from 6,800 Kilometers	  sur le site de la NASA.</a></div>
PIA10366: Phobos from 6,800 Kilometers
<h1>PIA10367:  Phobos from 5,800 Kilometers</h1><div class="PIA10367" lang="en" style="width:800px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p>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 second, taken from a distance of about 5,800 kilometers (about 3,600 miles). The illuminated part of Phobos seen in the images is about 21 kilometers (13 miles) across.</p><p>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. 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).</p><p>In the full-resolution version of this image, a pixel encompasses 5.8 meters (19 feet), providing a resolution (smallest visible feature) of about 15 meters (about 50 feet). Previous pictures from NASA's Mars Global Surveyor are of slightly higher resolution, at 4 meters (13 feet) per pixel. However, the HiRISE images have higher signal-to-noise, making the new data some of the best ever for Phobos. </p><p>Although the image is displayed here in black and white, data from HiRISE's three color channels were used to give higher signal-to-noise, thereby increasing detail. The image is in the HiRISE catalog as PSP_007769_9015.</p><p>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.<br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA10367" onclick="window.open(this.href); return false;" title="Voir l'image 	 PIA10367:  Phobos from 5,800 Kilometers	  sur le site de la NASA">Voir l'image 	 PIA10367:  Phobos from 5,800 Kilometers	  sur le site de la NASA.</a></div>
PIA10367: Phobos from 5,800 Kilometers
<h1>PIA10368:  Phobos from 6,800 Kilometers (Color)</h1><div class="PIA10368" lang="en" style="width:800px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p><a href="/tiff/PIA10368_fig1.tif"></a><br />Inset</p><p>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. </p><p>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. </p><p>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.</p><p>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).</p><p>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.</p><p>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.<br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA10368" onclick="window.open(this.href); return false;" title="Voir l'image 	 PIA10368:  Phobos from 6,800 Kilometers (Color)	  sur le site de la NASA">Voir l'image 	 PIA10368:  Phobos from 6,800 Kilometers (Color)	  sur le site de la NASA.</a></div>
PIA10368: Phobos from 6,800 Kilometers (Color)
PIA10368_fig1.jpg
PIA10368_fig1.jpg
<h1>PIA10369:  Phobos from 5,800 Kilometers (Color)</h1><div class="PIA10369" lang="en" style="width:800px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p>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 second, taken from a distance of about 5,800 kilometers (about 3,600 miles). It is presented in color by combining data from the camera's blue-green, red, and near-infrared channels. </p><p>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. </p><p>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.</p><p>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).</p><p>In the full-resolution version of this image, a pixel encompasses 5.8 meters (19 feet), providing a resolution (smallest visible feature) of about 15 meters (about 50 feet). Previous pictures from NASA's Mars Global Surveyor are of slightly higher resolution, at 4 meters (13 feet) per pixel. However, the HiRISE images have higher signal-to-noise, making the new data some of the best ever for Phobos. This image is in the HiRISE catalog as PSP_007769_9015.</p><p>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.<br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA10369" onclick="window.open(this.href); return false;" title="Voir l'image 	 PIA10369:  Phobos from 5,800 Kilometers (Color)	  sur le site de la NASA">Voir l'image 	 PIA10369:  Phobos from 5,800 Kilometers (Color)	  sur le site de la NASA.</a></div>
PIA10369: Phobos from 5,800 Kilometers (Color)
<h1>PIA10370:  'Marsshine' on Shadowed Part of Phobos</h1><div class="PIA10370" lang="en" style="width:800px;text-align:left;margin:auto;background-color:#000;padding:10px;max-height:150px;overflow:auto;"><p><a href="/tiff/PIA10370_fig1.tif"></a><br />Inset</p><p>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 a portion of the second one, enhanced to bring out detail in areas of Phobos that were not illuminated by the sun when the image was taken. Craters are visible due to faint illumination from reflected light off of Mars ("Marsshine"). This is directly analogous to "Earthshine," the reflected sunlight from our planet that illuminates the dark side of Earth's moon. The enhancement to show details in the shadows also washes out detail in the sunlit areas in the lower portion of the image.</p><p>The ability to see features on Phobos illuminated by Marsshine demonstrates the high sensitivity of the HiRISE camera. This image is in the HiRISE catalog as PSP_007769_9015.</p><p>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.<br /><br /><a href="http://photojournal.jpl.nasa.gov/catalog/PIA10370" onclick="window.open(this.href); return false;" title="Voir l'image 	 PIA10370:  'Marsshine' on Shadowed Part of Phobos	  sur le site de la NASA">Voir l'image 	 PIA10370:  'Marsshine' on Shadowed Part of Phobos	  sur le site de la NASA.</a></div>
PIA10370: 'Marsshine' on Shadowed Part of Phobos
PIA10370_fig1.jpg
PIA10370_fig1.jpg

Nouveau site de Planète Astronomie • Création de sites internet professionnels