Descripción : FDC, stamp dedicated to Dawn entered Ceres orbit on March 6, 2015, four months prior to the arrival of New Horizons at Pluto. Dawn thus became the first mission to study a dwarf planet at close range. Dawn initially entered a polar orbit around Ceres, and continued to refine its orbit. It obtained its first full topographic map of Ceres during this period.
Pasadena post stamp.

USA 3048 E - 10532 USA 2 F - image retouchée ?

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Evento Espacial :

DAWN · CERES ENCOUNTER