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| Ultimi arrivi - Mercury |
ZZ-Mercury-Terminator-PIA14357.jpgMercurian Terminator (credits for the additional process. and color.: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington)87 visiteCaption NASA:"The Terminator of Mercury, shown here in color, is the line between light and dark, or day and night. On Mercury, three days are equivalent to two years or, in other words, the Planet spins around its axis three times for every two orbits around the Sun. The first Mercury year of the MESSENGER mission ended on Monday, June 13, 2011".
Date acquired: June 07, 2011
Image Mission Elapsed Time (MET): 215945273, 215943853, 215945277
Image ID: 349804, 349803, 349805
Instrument: Wide Angle Camera (WAC) of the Mercury Dual Imaging System (MDIS)
WAC filter: 9 (1000 nanometers), 7 (750 nanometers), 6 (430 nanometers)
Center Latitude: 79,32° South
Center Longitude: 173,9° East
Resolution: 1715 meters/pixel
Scale: the approximate width of the image is 1840 KmMareKromiumLug 04, 2011
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ZZ-Mercury-Craters-Unnamed_Craters-PIA14362-PCF-LXTT.jpgAlbedo Differences (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)142 visiteCaption NASA:"This image depicts a stark contrast between Albedo differences on Mercury. The Crater Kalidasa, located in the upper left of the image, contains a smaller but exceptionally bright Crater on its Floor. Nearby to the South/West, Low Reflectance Material (LRM) is found on Kalidasa's Floor. LRM is also visible at the upper left corner of the image. The law of superposition tells us that Kalidasa must have formed before the small bright Crater".
Date acquired: June, 07th, 2011
Image Mission Elapsed Time (MET): 215940577
Image ID: 349800
Instrument: Narrow Angle Camera (NAC) of the Mercury Dual Imaging System (MDIS)
Center Latitude: 17,25° South
Center Longitude: 182,2° East
Resolution: 141 meters/pixel
Scale: Kālidāsa Crater is approximately 100 Km in diameter.
Incidence Angle: 17,4°
Emission Angle: 65,8°
Sun-Target-Spacecraft (such as "Phase") Angle: 78,3°MareKromiumLug 04, 2011
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ZZ-Craters-Mercury-Secondary_Craters_Field-PIA14379.jpgSecondary Crater-Chains or Signs of multiple and simultaneous Cometary Impacts? (Enhanced Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)158 visiteCaption NASA:"This view captured by MESSENGER's wide angle camera (WAC) shows many Secondary Crater-Chains that originated from a Primary Impact Crater located outside this image, to the West. The Secondary Crater-Chains are formed as the Parent Crater-forming event launches Ejecta into the surrounding area. The chunks of Ejecta dig out their own craters which sometimes overlap to form a long valley-like depression. These features are striking though not uncommon on Mercury's battered Surface. Some other examples of Secondary Craters can be found at Abedin Crater".
Date acquired: April, 30th, 2011
Image Mission Elapsed Time (MET): 212677081
Image ID: 196161
Instrument: Wide Angle Camera (WAC) of the Mercury Dual Imaging System (MDIS)
WAC filter: 7 (748 nanometers)
Center Latitude: 63,76°
Center Longitude: 198,7° East
Resolution: 162 meters/pixel
Scale: this image is about 165 Km across
Incidence Angle: 79,9°
Emission Angle: 1,1°
Sun-Target-Spacecraft (such as "Phase") Angle: 81,0°MareKromiumLug 04, 2011
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ZZ-Mercury-Craters-Cervantes_Crater-PIA14251-PCF-LXTT.jpgPortion of the Rim of Cervantes Crater (Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)151 visiteThe Rim of the Double-Ring Basin Cervantes cuts through the middle of this NAC image. Cervantes has a diameter of about 213 Km and was named in honor of the Spanish novelist, playwright, and poet Miguel de Cervantes (1547-1616), best known for his novel Don Quixote.
This image was acquired as part of MDIS's High-Resolution Surface Morphology Base Map. The Surface Morphology Base Map will cover more than 90% of Mercury's Surface with an average resolution of 250 meters/pixel (0,16 miles/pixel or 820 feet/pixel). Images acquired for the Surface Morphology Base Map typically have off-vertical Sun Angles (i.e.: high Solar Incidence Angles) and visible shadows so as to reveal clearly the topographic form of geologic features. On March 17, 2011 (March 18, 2011, UTC), MESSENGER became the first Spacecraft ever to orbit the planet Mercury. The mission is currently in its commissioning phase, during which Spacecraft and instrument performance are verified through a series of specially designed checkout activities. In the course of the one-year primary mission, the Spacecraft's seven scientific instruments and radio science investigation will unravel the history and evolution of the Solar System's innermost Planet.
Date acquired: May, 26th, 2011
Image Mission Elapsed Time (MET): 214857150
Image ID: 298561
Instrument: Narrow Angle Camera (NAC) of the Mercury Dual Imaging System (MDIS)
Center Latitude: 73,85° South
Center Longitude: 232,9° East
Resolution: 208 meters/pixel
Scale: This image is approx. 300 Km from the Western Corner to the Eastern Corner
Solar Incidence Angle: 77,8°
Emission Angle: 0,6°
Sun-Target-Spacecraft (such as "Phase") Angle: 78,2°MareKromiumLug 04, 2011
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ZZ-Mercury-Global_View_of_the_Surface-PIA14378.jpgThe Cratered Surface of Mercury (Natural Colors; credits: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington)92 visiteThis color image reveals two of Mercury's named Craters, Basho and Bartok. Basho is the Dark-Rimmed Crater to the far left of the image, and Bartok is the bright yellow crater approximately in the center. Both Craters have visible Central Peaks, but Bartok's Peaks appear blue in this image, indicating they may be made of a different material that was unearthed by the large force of the impact.
This image was acquired as part of MDIS's color base map. The color base map is composed of WAC images taken through eight different narrow-band color filters and will cover more than 90% of Mercury's Surface with an average resolution of 1 Km/pixel (0,6 miles/pixel). The highest-quality color images are obtained for Mercury's Surface when both the Spacecraft and the Sun are overhead, so these images typically are taken with viewing conditions of low Incidence and Emission Angles.
Date acquired: June, 21st, 2011
Image Mission Elapsed Time (MET): 217134583, 217134599, 217134579
Image ID: 407077, 407081, 407076
Instrument: Wide Angle Camera (WAC) of the Mercury Dual Imaging System (MDIS)
WAC filters: 9 (1000 nanometers), 7 (750 nanometers), 6 (430 nanometers) as red-green-blue.
Center Latitude: 3,.68° South
Center Longitude: 221,4° East
Resolution: 1806 meters/pixel
Scale: Basho, the Dark-Rimmed Crater at far left, is approx. 74 Km in diameter.
Solar Incidence Angle: 51.4° (with the Sun about 38,6° above the Local Horizon)
Emission Angle: 0,6°
Sun-Target-Spacecraft (or "Phase") Angle: 51,6°MareKromiumLug 03, 2011
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ZZ-Mercury-Limb-PIA14250-PCF-LXTT-1.jpgCrescent Mercury (Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)74 visiteMercury forms a beautiful crescent shape in this image, acquired as the MESSENGER Spacecraft was high above Mercury's Southern Hemisphere. On the left side is the Terminator, dividing the day from night. On the right side is the sunlit Limb, separating Mercury from the darkness of (the Inner) Space.
This image was acquired as part of MDIS's limb imaging campaign. Once per week, MDIS captures images of Mercury's Limb, with an emphasis on imaging the Southern Hemisphere Limb. These Limb images provide information about Mercury's shape and complement measurements of topography made by the Mercury Laser Altimeter (MLA) of Mercury's Northern Hemisphere.
On March 17, 2011 (March 18, 2011, UTC), MESSENGER became the first Spacecraft ever to orbit the planet Mercury. The mission is currently in its commissioning phase, during which Spacecraft and instrument performance are verified through a series of specially designed checkout activities. In the course of the one-year primary mission, the Spacecraft's 7 scientific instruments and radio science investigation will unravel the history and evolution of the Solar System's innermost Planet.
Date acquired: May, 24th, 2011
Image Mission Elapsed Time (MET): 214697006
Image ID: 290397
Instrument: Wide Angle Camera (WAC) of the Mercury Dual Imaging System (MDIS)
WAC filter: 7 (748 nanometers)
Center Latitude: 53,01° South
Center Longitude: 116,7° East
Resolution: 2827 meters/pixel
Scale: Mercury's radius is about 2440 Km (approx. 1520 miles)MareKromiumGiu 28, 2011
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ZZ-Mercury-Craters-DeGas-PCF-LXTT.jpgBright-white Deposits inside Degas Crater (Absolute Natural Colors; credits for the additional process. and color: Dr Paolo C. Fienga - Lunexit Team)83 visitenessun commentoMareKromiumGiu 25, 2011
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ZZ-Mercury-Terminator-PIA14195-PCF-LXTT.jpgMercurian Terminator (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)203 visiteDate acquired: March 31, 2011
Image Mission Elapsed Time (MET): 210035203
Image ID: 71446
Instrument: Wide Angle Camera (WAC) of the Mercury Dual Imaging System (MDIS)
WAC filter: 7 (748 nanometers)
Center Latitude: 83,17° South
Center Longitude: 250,9° East
Resolution: 1833 mt/pixel
Scale: the center of this image is about 1970 Km (approx. 1225 miles) acrossMareKromiumGiu 20, 2011
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ZZ-Mercury-Global_View_of_the_Surface-PIA14081-PCF-LXTT.jpgNorth Polar Highly Cratered Terrain (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)203 visiteDate Acquired: March 29, 2011
Image Mission Elapsed Time (MET): 209895911
Image ID: 65416
Instrument: Wide Angle Camera (WAC) of the Mercury Dual Imaging System (MDIS)
WAC filer: 7 (748 nanometers wavelength)
Center Latitude: 81,2° North
Center Longitude: 72,3° East
Resolution: 166 mt/pixel (0,10 miles/pixel)
Scale: the bottom of this image is about 84 Km (approx. 52 miles) acrossMareKromiumGiu 20, 2011
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ZZ-Mercury-Plains-PIA14193-PCF-LXTT.jpgRidged Plains (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)199 visiteDate acquired: March 30, 2011
Image Mission Elapsed Time (MET): 209982350
Image ID: 69294
Instrument: Wide Angle Camera (WAC) of the Mercury Dual Imaging System (MDIS)
WAC filter: 7 (748 nanometers wavelength)
Center Latitude: 56,5° North
Center Longitude: 23,5° East
Resolution: 187 mt/pixel
Scale: the scene is about 191 Km acrossMareKromiumGiu 20, 2011
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ZZ-Mercury-Craters-Unnamed_Crater_with_Rays-PIA14085-PCF-LXTT.jpgRelatively "Fresh" Impact Crater (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)200 visiteDate Acquired: March 29, 2011
Image Mission Elapsed Time (MET): 209894125
Image ID: 65182
Instrument: Narrow Angle Camera (NAC) of the Mercury Dual Imaging System (MDIS)
Center Latitude: 11.8° North
Center Longitude: 13,9° East
Resolution: 160 mt/pixel
Scale: the bright Unnamed Crater is about 6,4 Km in diameter.MareKromiumGiu 20, 2011
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ZZ-Mercury-Caloris_Montes-546192main_messenger_orbit_image20110517_1_full_full.jpgCaloris Montes (Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)140 visitenessun commentoMareKromiumGiu 20, 2011
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