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'10th planet' has moon companion

NEWS "The astronomers who in July announced the discovery of a "10th planet" in our Solar System say the object has a moon. Currently, the planet has been dubbed Xena; the moon will be called Gabrielle until official names are agreed. Both "codenames" come from characters in a US TV series, Xena: Warrior Princess. Xena (it also has the designation 2003 UB313) has a highly elliptical orbit. It is currently 14.5 billion km (9 billion miles) away, about 97 times further away than the Earth is from the Sun. The orbit is also tilted roughly 45 degrees above the orbital plane of the other planets. Professor Brown's team expects to learn more when it gets time on the Hubble Space Telescope in November. Gabrielle's discovery will be reported officially in a scientific paper submitted to the Astrophysical Journal." (BBC Word News Online, 2005) LINKS BBC World News Online Xena's Official News and Info site Gabrielle's announcement site

This entry was posted on Monday, October 03, 2005 at 10/03/2005 11:16:00 AM. You can skip to the end and leave a response.

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