Sedna might be oort cloud object as in the enclosed news.<br /> <br />'New planet' may have a moon <br /><br />The object appears very red<br /><br /><br />Enlarge Image<br /> <br />The distant object that some astronomers think could be the Solar System's 10th planet may have a moon. <br />The new planetary candidate, which has been named Sedna, rotates more slowly on itself than expected, suggesting it may have a satellite orbiting it. <br /><br />One of the scientists who found Sedna has been giving further details of its discovery at a news conference. <br /><br />Observations show it measures less than 1,700km (about 1,000 miles) in diameter, which is smaller than Pluto. <br /><br />"We think that there's evidence there is a satellite around Sedna," said Dr Mike Brown, of the California Institute of Technology, US, and leader of the research team that found the body. <br /><br />"We're hoping in the very near future to get some observations from the Hubble Space Telescope that should put that question to rest." <br /><br />Sedna was first seen on 14 November 2003 with the 48-inch Samuel Oschin Telescope at California's Palomar Observatory. Astronomers from the California Institute of Technology, Yale University and the Gemini Observatory were involved in the discovery. <br /><br />Sedna, which is named after the Inuit goddess of the ocean, is both very shiny and very red - the reddest object in the Solar System after Mars. <br /><br />Further than Pluto <br /><br />Sedna, or 2003 VB12, as it was originally designated, is the most distant object yet found orbiting our Sun. It is currently three times further away than Pluto (average distance to the Sun is 5.9 billion km or 3.6 billion miles). <br /><br />"The Sun appears so small from that distance that you could completely block it out with the head of a pin," said Dr Brown. <br /><br /> <br />Sedna is currently about 13 billion km from Earth <br />He added that, in his view, the object's apparently small size suggested it should not be cla