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| Piú votate - Mars Reconnaissance Orbiter (MRO) |
PSP_010059_1640_RED.jpgOlivine Deposits (possible True Colors; credits: Lunar Explorer Italia)56 visiteMars Local Time: 15:38 (middle afternoon)
Coord. (centered): 16,1° South Lat. and 133,7° East Long.
Spacecraft altitude: 259,9 Km (such as about 162,5 miles)
Original image scale range: 26 cm/pixel (with 1 x 1 binning) so objects ~1,04 mt across are resolved
Map projected scale: 25 cm/pixel
Map projection: EQUIRECTANGULAR
Emission Angle: 3,2°
Phase Angle: 61,9°
Solar Incidence Angle: 64° (meaning that the Sun is about 26° above the Local Horizon)
Solar Longitude: 128,9° (Northern Summer)
Credits: NASA/JPL/University of Arizona
Additional process. and coloring: Lunar Explorer ItaliaMareKromium
(4 voti)
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PSP_010063_2135_RED.jpgIsmenius Lacus (possible True Colors; credits: Lunar Explorer Italia)58 visiteMars Local Time: 14:16 (early afternoon)
Coord. (centered): 33,2° North Lat. and 17,4° East Long.
Spacecraft altitude: 296,7 Km (such as about 185,5 miles)
Original image scale range: 29,7 cm/pixel (with 1 x 1 binning) so objects ~59,4 cm across are resolved
Map projected scale: 25 cm/pixel
Map projection: EQUIRECTANGULAR
Emission Angle: 6,9°
Phase Angle: 54,4°
Solar Incidence Angle: 47° (meaning that the Sun is about 43° above the Local Horizon)
Solar Longitude: 129,0° (Northern Summer)
Credits: NASA/JPL/University of Arizona
Additional process. and coloring: Lunar Explorer ItaliaMareKromium
(4 voti)
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PSP_010006_1475_RED.jpgWestern Half of Central Peak of a large and well-preserved Unnamed Southern Crater (possible True Colors; credits: Lunar Explorer Italia)59 visiteMars Local Time: 15:33 (middle afternoon)
Coord. (centered): 32,0° South Lat. and 140,7° East Long.
Spacecraft altitude: 270,8 Km (such as about 169,3 miles)
Original image scale range: 54,2 cm/pixel (with 1 x 1 binning) so objects ~1,63 mt across are resolved
Map projected scale: 50 cm/pixel
Map projection: EQUIRECTANGULAR
Emission Angle: 20,7°
Phase Angle: 88,3°
Solar Incidence Angle: 73° (meaning that the Sun is about 17° above the Local Horizon)
Solar Longitude: 126,9° (Northern Summer)
Credits: NASA/JPL/University of Arizona
Additional process. and coloring: Lunar Explorer ItaliaMareKromium
(4 voti)
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Psp_010344_2655_red.jpgScarp-Fed Dark Dunes (possible True Colors; credits: Lunar Explorer Italia)57 visiteMars Local Time: 09:59 (middle morning hours)
Coord. (centered): 85,7° South Lat. and 179,4° East Long.
Spacecraft altitude: 330,6 Km (such as about 206,6 miles)
Original image scale range: 66,1 cm/pixel (with 1 x 1 binning) so objects ~1,98 mt across are resolved
Map projected scale: 50 cm/pixel
Map projection: EQUIRECTANGULAR
Emission Angle: 17,4°
Phase Angle: 84,6°
Solar Incidence Angle: 70° (meaning that the Sun is about 20° above the Local Horizon)
Solar Longitude: 139,7° (Northern Summer)
Credits: NASA/JPL/University of Arizona
Additional process. and coloring: Lunar Explorer ItaliaMareKromium
(4 voti)
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PSP_009896_1680_RED.jpgFeatures of Noctis Labyrinthus (possible True Colors; credits: Lunar Explorer Italia)65 visiteMars Local Time: 15:34 (middle afternoon)
Coord. (centered): 12,0° South Lat. and 263,0° East Long.
Spacecraft altitude: 255,4 Km (such as about 159,6 miles)
Original image scale range: 51,1 cm/pixel (with 1 x 1 binning) so objects ~1,53 mt across are resolved
Map projected scale: 50 cm/pixel
Map projection: EQUIRECTANGULAR
Emission Angle: 0,5°
Phase Angle: 61,9°
Solar Incidence Angle: 62° (meaning that the Sun is about 28° above the Local Horizon)
Solar Longitude: 122,9° (Northern Summer)
Credits: NASA/JPL/University of Arizona
Additional process. and coloring: Lunar Explorer ItaliaMareKromium
(4 voti)
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PSP_009749_1995_RED.jpgFresh "Santa Fe Crater" in Chryse Planitia (possible True Colors; credits: Lunar Explorer Italia)60 visiteMars Local Time: 15:25 (early afternoon)
Coord. (centered): 19,4° North Lat. and 312,0° East Long.
Spacecraft altitude: 283,4 Km (such as about 177,1 miles)
Original image scale range: 28,4 cm/pixel (with 1 x 1 binning) so objects ~85 cm across are resolved
Map projected scale: 25 cm/pixel
Map projection: EQUIRECTANGULAR
Emission Angle: 4,0°
Phase Angle: 51,6°
Solar Incidence Angle: 48° (meaning that the Sun is about 42° above the Local Horizon)
Solar Longitude: 117,5° (Northern Summer)
Credits: NASA/JPL/University of Arizona
Additional process. and coloring: Lunar Explorer ItaliaMareKromium
(4 voti)
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Psp_009743_2565_red.jpgNorthern Dunes (possible True Colors; credits: Lunar Explorer Italia)73 visiteMars Local Time: 14:20 (early afternoon)
Coord. (centered): 76,2° North Lat. and 95,3° East Long.
Spacecraft altitude: 330,1 Km (such as about 206,3 miles)
Original image scale range: 33 cm/pixel (with 1 x 1 binning) so objects ~99 cm across are resolved
Map projected scale: 25 cm/pixel
Map projection: EQUIRECTANGULAR
Emission Angle: 17,0°
Phase Angle: 71,6°
Solar Incidence Angle: 57° (meaning that the Sun is about 33° above the Local Horizon)
Solar Longitude: 117,3° (Northern Summer)
Credits: NASA/JPL/University of Arizona
Additional process. and coloring: Lunar Explorer ItaliaMareKromium
(4 voti)
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Psp_009717_2545_red.jpgSmall Crater on Arcuate Ridge, West of Olympia Mensae (possible True Colors; credits: Lunar Explorer Italia)57 visiteMars Local Time: 14:53 (early afternoon)
Coord. (centered): 74,3° North Lat. and 93,7° East Long.
Spacecraft altitude: 314,9 Km (such as about 196,8 miles)
Original image scale range: 31,5 cm/pixel (with 1 x 1 binning) so objects ~95 cm across are resolved
Map projected scale: 25 cm/pixel
Map projection: EQUIRECTANGULAR
Emission Angle: 1,9°
Phase Angle: 55,2°
Solar Incidence Angle: 57° (meaning that the Sun is about 33° above the Local Horizon)
Solar Longitude: 116,3° (Northern Summer)
Credits: NASA/JPL/University of Arizona
Additional process. and coloring: Lunar Explorer ItaliaMareKromium
(4 voti)
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Psp_009683_1830_red.jpgPossible "Intravalley Paleolake" in Shalbatana Vallis (possible True Colors; credits: Lunar Explorer Italia)60 visiteMars Local Time: 15:30 (middle afternoon)
Coord. (centered): 3,0° North Lat. and 316,7° East Long.
Spacecraft altitude: 272,1 Km (such as about 170,1 miles)
Original image scale range: 54,4 cm/pixel (with 1 x 1 binning) so objects ~1,63 mt across are resolved
Map projected scale: 50 cm/pixel
Map projection: EQUIRECTANGULAR
Emission Angle: 5,5°
Phase Angle: 50,1°
Solar Incidence Angle: 55° (meaning that the Sun is about 35° above the Local Horizon)
Solar Longitude: 115,1° (Northern Summer)
Credits: NASA/JPL/University of Arizona
Additional process. and coloring: Lunar Explorer ItaliaMareKromium
(4 voti)
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PSP_006504_1910_RED_abrowse-00~0.jpgAeolian Features in Arabia Terra (MULTISPECTRUM; credits: Lunexit)65 visiteThis observation shows part of the floor of a large impact crater in Arabia Terra. This crater formed in the distant past when a large asteroid or comet struck Mars, and it has been heavily modified since formation.
The crater was partially filled by sediments, forming the rock outcrops and layers visible in this image.
After this material was laid down, part of the deposits were eroded away. The central part of the image has been carved especially deeply, forming a distinct depression.
This depression has been a site of aeolian transport of sand in more recent times. A particularly interesting aspect of this site is that there appears to have been multiple styles of aeolian activity. Both large sand dunes (the dark hills) and smaller ripples (sharp, light-toned narrow ridges) are visible.
While ripples are often found in association with dunes, the different colors suggest that the material is not the same.
(At full resolution, the surfaces of both the dunes and the large ripples are covered with much smaller ripples)
Even where the ripples and dunes are in contact, there is a distinct contrast between the materials: dark sand appears to fill a trough between two large light ripples, suggesting that the dark sand has moved more recently. This could be due to different grain sizes, since certain sizes are most easily lifted by the wind.MareKromium
(4 voti)
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Psp_009572_1620_red.jpgSecondary Craters in Hesperia Planum (Enhanced and Saturated Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunar Explorer Italia)64 visiteMars Local Time: 15:33 (middle afternoon)
Coord. (centered): 17,7° South Lat. and 109,6° East Long.
Spacecraft altitude: 257,5 Km (such as about 160,9 miles)
Original image scale range: 25,8 cm/pixel (with 1 x 1 binning) so objects ~77 cm across are resolved
Map projected scale: 25 cm/pixel
Map projection: EQUIRECTANGULAR
Emission Angle: 3,8°
Phase Angle: 63,7°
Solar Incidence Angle: 66° (meaning that the Sun is about 24° above the Local Horizon)
Solar Longitude: 111,1° (Northern Summer)
Credits: NASA/JPL/University of Arizona
Additional process. and coloring: Lunar Explorer Italia
Nota Lunexit: la caption NASA originale titola la foto "Fresh or Well-Preserved Chain of Impact Craters". A nostro avviso, le features di questo frame NON sono rappresentative di Crateri da Impatto Primari bensì - ed al limite - da Crateri da Impatto Secondari (è la loro forma, infatti, alquanto irregolare e squadrata, che ci suggerisce di escludere l'ipotesi per cui si tratti di Primary Impact Craters).MareKromium
(4 voti)
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Psp_009427_2190_red.jpgSmall and "fresh" Crater in Utopia Planitia (possible True Colors; credits: Lunar Explorer Italia)58 visiteMars Local Time: 15:16 (early afternoon)
Coord. (centered): 38,5° North Lat. and 100,3° East Long.
Spacecraft altitude: 297,4 Km (such as about 185,9 miles)
Original image scale range: 29,8 cm/pixel (with 1 x 1 binning) so objects ~89 cm across are resolved
Map projected scale: 25 cm/pixel
Map projection: EQUIRECTANGULAR
Emission Angle: 4,4°
Phase Angle: 48,1°
Solar Incidence Angle: 44° (meaning that the Sun is about 46° above the Local Horizon)
Solar Longitude: 106,0° (Northern Summer)
Credits: NASA/JPL/University of Arizona
Additional process. and coloring: Lunar Explorer ItaliaMareKromium
(4 voti)
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