This new view of Ceres’ surface captured May 23rd and seen from a distance of 3,200 miles (5,100 kilometres) shows finer details coming into view as NASA’s Dawn spacecraft spirals down to increasingly lower orbits. Resolution in the image is about 1,600 feet (480 metres) per pixel. Image credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA.The view shows numerous secondary craters, formed by the re-impact of debris strewn from larger impact sites. Smaller surface details like this are becoming visible with increasing clarity as Dawn spirals lower in its campaign to map Ceres.
The region shown here is located between 13° and 51° north latitude and 182° and 228° east longitude. The image has been projected onto a globe of Ceres, which accounts for the small notch of black at upper right.
OpNav9 is the ninth and final set of Dawn images of Ceres taken primarily for navigation purposes.
A four-planet system orbiting the star Kepler-223 in the constellation Cygnus is actually a rarity: Its planets, all miniature Neptunes nestled close to the star, are orbiting in a unique resonance that has been locked in for billions of years. For every three orbits of the outermost planet, the second orbits four times, the third six times and the innermost eight times.
One of the strangest landforms spotted by NASA’s New Horizons spacecraft when it flew past Pluto was the “bladed” terrain formally named Tartarus Dorsa. The blades reach hundreds of feet high and are typically spaced a few miles apart. No geology degree is necessary to see why the terrain is so interesting — just grab your red and green 3-D spectacles.
Launched in 2007, NASA’s Dawn spacecraft is preparing for its encounter with dwarf planet Ceres, imaging the body from a distance of 740,000 miles as a final calibration of the probe’s science camera. Dawn will be captured into Ceres’ orbit in March 2015.