Artist's conception of the dwarf planet Eris and its sole satellite, Dysnomia.
This is an artist's concept of Kuiper Belt object 2003 UB313 (nicknamed "Xena") and its satellite "Gabrielle."
Ground-based observations suggested that Xena was about 30 percent greater in diameter than Pluto, but Hubble's Advanced Camera for Surveys images, taken on Dec. 9 and 10, 2005, yielded a diameter of 1,490 miles (with an uncertainty of 60 miles) for Xena. Pluto's diameter, as measured by Hubble, is 1,422 miles.
Xena is the large object at the bottom of this artist's concept. A portion of its surface is lit by the Sun, located in the upper left corner of the image. Xena's companion, Gabrielle, is located just above and to the left of Xena.
This image is credited to NASA and the Hubble Space Science Institute. Per NASA policy and applicable United States federal law, such images are in the public domain. NASA images, other than its institutional logo, or photographs of actual persons, are not subject to copyright and may be used without additional permission, unless otherwise declared.
NASA, ESA, and A. Schaller.
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|current||07:27, 15 May 2008||800 × 600 (81 kilobytes)||TerryH||Artist's conception of the dwarf planet Eris and its sole satellite, Dysnomia. == Original Caption == This is an artist's concept of Kuiper Belt object 2003 UB313 (nicknamed "Xena") and its satellite "Gabrielle." Ground-based observations suggested that|
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