You may better know 2003 ub 313, which was its designation given when it was believed to be a minor planet, as Eris. Eris made such a fuss because it is larger than Pluto – 27% more massive. Some people labeled it as the tenth planet while others did not think it should join the ranks of the nine planets we had.
When was the 2003ub313 discovered?
2003 ub313. In 2003, a celestial object was discovered, but little did astronomers know that this object, which was designated 2003ub313, was going to change astronomy forever. Although the object was first photographed in 2003 by Mike Brown and other astronomers, it was not until 2005 that astronomers announced their discovery.
How big is UB313?
Brown estimates that UB313 is somewhere between 2390 and 3550 km in diameter. This would make it approximately one and a half times the size of Pluto.
When will uub313 be visible?
UB313 is currently almost directly overhead in the early-morning eastern sky, in the Cetus constellation. It will be visible over the next 6 months using high-powered telescopes.
