Hola amigos: A VUELO DE UN QUINDE EL BLOG., Hemos recibido de la Agencia Espacial NASA, la información sobre el objetivo de la Misión: NASA's Dawn misión, en enfocar al asteroide Ceres, que está ubicado en el llamado Cinturón de Asteroides, una franja del Sistema Solar entre Marte y Júpiter.
Ceres, Target of NASA's Dawn Mission
Discovered on Jan. 1, 1801 by Giuseppe Piazzi of Italy, Ceres is the largest
object in the asteroid belt - the strip of solar system real estate between Mars
and Jupiter. On March 6, 2015, NASA's
Dawn spacecraft will arrive at Ceres, marking the first time that a
spacecraft has ever orbited two solar system
targets. Dawn previously explored the protoplanet Vesta for 14 months, from
2011 to 2012, capturing detailed images and data about that body. Dawn has
entered its approach phase toward Ceres, and the next couple of months promise
continually improving views prior to arrival. By the end of January, the
spacecraft's images and other data will be the best ever taken of the dwarf
planet.
This image of Ceres was taken by the Advanced Camera for Surveys on NASA's
Hubble Space Telescope between December 2003 and January 2004. Hubble images of
Vesta and Ceres helped
astronomers plan for the Dawn spacecraft’s tour. Astronomers enhanced the
sharpness in the image to bring out features on Ceres' surface, including
brighter and darker regions that could be asteroid impact features. The
observations were made in visible and ultraviolet light.
The colors represent the differences between relatively red and blue regions.
These differences may simply be due to variation on the surface among different
types of material. Ceres' round shape suggests that its interior is layered like
those of terrestrial planets such as Earth. Ceres may have a rocky inner core,
an icy mantle, and a thin, dusty outer crust inferred from its density and
rotation rate of 9 hours. Ceres is approximately 590 miles (950 kilometers)
across.
Image Credit: NASA/ESA/J. Parker (SWRI), P. Thomas (Cornell U.), L.
McFadden (U-Md., College Park), and M. Mutchler and Z. Levay
(STScI)
NASA
Guillermo Gonzalo Sánchez Achutegui
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