*Description*: This is a photo illustration of the largest known Kuiper Belt objects. "Xena," officially catalogued at 2003 UB313, is slightly larger than Pluto. Technical facts about this news release: About the Object Object Description: 2003 UB313, "Xena" Position (J2000) on December 9/10, 2005: R.A. 01h 35m 37s.64 Dec. -05° 39' 57 ".7 Distance: 10 billion miles away (16 billion kilometers) About the Data Data Description: This image was created from HST data from proposal 10759: M. Brown (Caltech), D. Rabinowitz (Yale University) and C. Trujillo (Gemini Observatory). Instrument: ACS/HRC Exposure Date(s): December 9/10, 2005 Exposure Time: 1.9 hours Filters: F435W("B") About the Image Image Credit: NASA, ESA, and M. Brown (Caltech) Release Date: April 11, 2006 *News Release Number:*: STScI-2006-16d
