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Dawn Spies Ceres’ North Pole

By Robert Trembley  |  17 Apr 2015

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This entry is part 8 of 27 in the series The Dawn Misson to the Asteroid Belt

This animation shows the north pole of dwarf planet Ceres as seen by the Dawn spacecraft on April 10, 2015. Dawn was at a distance of 33,000 km (21,000 mi). Image credit: NASA/JPL-Caltech/UCLA/ASI/INAF

The NASA Dawn spacecraft has spent more than a month on the dark side of dwarf planet Ceres as it performs a complicated dance with Ceres’ gravity before entering into a circular orbit around the dwarf planet. On April 10, with the limb of the Ceres coming into view, Dawn captured several images of the Ceres’ north polar region. Taken at a distance of 33,000 km (21,000 mi), they represent the highest-resolution views of Ceres to date; Future images of Ceres will show surface features at increasingly higher resolutions.

The Dawn spacecraft's path as it is captured by Ceres' gravity, and enters into its RC3 orbit. Credit: NASA/JPL-Caltech. The Dawn spacecraft’s path as it is captured by Ceres’ gravity, and enters into its RC3 orbit. Credit: NASA/JPL-Caltech.

Ceres has an average diameter of about 950 km (590 mi), and is the most massive object in the main asteroid belt. Ceres comprises about 1/3 the total mass of all the bodies in the main asteroid belt, and its composition is similar to the icy moons of Jupiter and Saturn.

Using its ion propulsion system, Dawn is slowly maneuvering into its first science orbit at Ceres, which it achieve on April 23. The spacecraft will orbit at a distance of 13,500 km (8,400 mi) from the Ceres until May 9. Afterward, it will make its way to consecutively lower orbits.

This graphic shows the science-gathering orbits planned for the Dawn spacecraft, with the altitudes above the surface noted for each of the orbits. Credit: NASA/JPL-Caltech This graphic shows the science-gathering orbits planned for the Dawn spacecraft, with the altitudes above the surface noted for each of the orbits. Credit: NASA/JPL-Caltech

Source: JPL News & Events

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More Posts in this Series:
"The Dawn Misson to the Asteroid Belt"

78  |  What Do We Lose When We Sacrifice Science?

By Br. Guy Consolmagno  |  27 May 2021  |  Sacred Space Astronomy

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7  |  Where are all the new images of Ceres?

By Robert Trembley  |  31 Mar 2015

9  |  Bright Spot on Ceres in Hi-Rez

By Robert Trembley  |  29 Mar 2016

10  |  Dawn Mission Sees Dwarf Planet Ceres Rotating

By Robert Trembley  |  21 Jan 2015

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