What’s Creating Those Unusual Bright Spots on Ceres? Dawn Heads Toward Low-Altitude Mapping Orbit

What's Creating Those Unusual Bright Spots on Ceres?

This mosaic shows Ceres’ Occator crater and surrounding terrain from an altitude of 915 miles (1,470 kilometers), as seen by NASA’s Dawn spacecraft. Occator is about 60 miles (90 kilometers) across and 2 miles (4 kilometers) deep. Credits: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA

The Dawn Spacecraft begins its fourth and final science orbit at dwarf planet Ceres. Many hope this low-altitude mapping orbit will provide more information about the unusual bright spots on Ceres.

NASA’s Dawn spacecraft fired up its ion engine on Friday, October 23, to begin its journey toward its fourth and final science orbit at dwarf planet Ceres. The spacecraft completed two months of observations from an altitude of 915 miles (1,470 kilometers) and transmitted extensive imagery and other data to Earth.

The spacecraft is now on its way to the final orbit of the mission, called the low-altitude mapping orbit. Dawn will spend more than seven weeks descending to this vantage point, which will be less than 235 miles (380 kilometers) from the surface of Ceres. In mid-December, Dawn will begin taking observations from this orbit, including images at a resolution of 120 feet (35 meters) per pixel.

Of particular interest to the Dawn team is Occator crater, home to Ceres’ bright spots. A new mosaic of images from Dawn’s third science orbit highlights the crater and surrounding terrain.

Source: Elizabeth Landau, NASA’s Jet Propulsion Laboratory

1 Comment on "What’s Creating Those Unusual Bright Spots on Ceres? Dawn Heads Toward Low-Altitude Mapping Orbit"

  1. Looks like deposits left over from a meteor strike. not originally from that Ceres. on the subject of the mountain. it looks like it was formed from a meteor strike. the crator beside it and the mountain looks about the same size.

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