| Risultati della ricerca nelle immagini - "Reconnaissance" |
00-LRO-0001.jpgLiftoff...To the Moon!57 visitenessun commentoMareKromium
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00-LRO-0002.jpgLiftoff...To the Moon!59 visitenessun commentoMareKromium
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00-MRO-front-view_br~0.jpgHere is the "Mars Reconnaisance Orbiter"106 visiteThis artist's concept of the Mars Reconnaissance Orbiter features the spacecraft's main bus facing down, toward the red planet. The large silver circular feature above the spacecraft bus is the high-gain antenna, the spacecraft's main means of communicating with both Earth and other spacecraft. The long, thin pole behind the bus is the SHARAD antenna. Seeking liquid or frozen water, SHARAD will probe the subsurface using radar waves at a 15-25 MHz frequency band, "seeing" in the first few hundreds of feet (up to 1 kilometer) of Mars' crust. The large instrument (covered in black thermal blanketing) in the center is the HiRISE camera. This powerful camera will provide the highest-resolution images from orbit to date.
The other easily visible instruments are: the Electra telecommunications package which is the gold-colored instrument directly left of the HiRISE camera. It will act as a communications relay and navigation aid for Mars spacecraft. To the right of the HiRISE camera is the Context Imager (CTX).
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KappaCrucis.jpgThe "Jewel Box" (alias Kappa Crucis)56 visiteThis image of part of the Jewel Box, an open star cluster, was acquired by the HiRISE camera, an instrument on the Mars Reconnaissance Orbiter, on December 14, 2005 as part of a calibration sequence while en route to the Red Planet. The Jewel Box was so named by Sir John Herschel because of the variety of star colors in the cluster, including the large red giant star seen near the bottom of this image. The Jewel Box, also called Kappa Crucis, is about 10 MY old, so it is much younger than our Sun which is about 4.600 MY old. This cluster lies about 7.500 LY away, so the light we see today left the stars in the Neolithic Ages of Earth, when farming was first being practiced by our ancestors.
HiRISE can image in three colors, green, red, and near-infrared, so the colors are not exactly as we see them with our eyes.
The Jewel Box cluster lies in the Crux constellation, also called the Southern Cross, the most compact constellation in the sky.
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