Solar System
Images of the Asteroid Ceres Rotation
September 7, 2005 · NASA · Ceres, 1 Ceres
NASA's Hubble Space Telescope took these images of Ceres during its 9-hour rotation.
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.
Astronomers enhanced the sharpness in these images 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 between December 2003 and January 2004.
About the colours
This image is a composite of many separate exposures made by the ACS HRC instrument on the Hubble Space Telescope using several different filters. Two filters were used to sample broad wavelength ranges. The color results from assigning different hues (colors) to each monochromatic image. In this case, the assigned colors are: Blue: F330W (U) Red/orange: F555W (V)
About the data
This image was created from data from the HST proposal 9748 : J. Parker (Southwest Research Institute), L. McFadden (University of Maryland), C. Russell (University of California, Los Angeles), A. Stern (Southwest Research Institute), M. Sykes (University of Arizona), P. Thomas (Cornell University) and E. Young (Southwest Research Institute).