The largest unnamed dwarf planet in the solar system orbiting in the icy reaches beyond Neptune might only be one in thousands of such large worlds begging discovery -- and a name.

Given the placeholder designation 2007 OR10, this darkest of the known dwarf planets is also called "Snow White" for some odd reason. Only the team of astronomers that discovered it has the right to name it and they've said they still can't do that given the paucity of data they have about their discovery.

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Snow White or 2007 OR10 is the third-largest dwarf planet discovered in the solar system -- for now. Only Pluto and Eris are larger than 2007 OR10, whose diameter has been revised to 1,535 kilometers, according to NASA. A new study said 2007 OR10 is also the largest unnamed body in our solar system.

Snow White orbits the sun every 547.5 years on an extremely elliptical path. At its closest, the planet is 33 astronomical units (AU) away from the sun and as far away as 101 AU.

A  study also found that 2007 OR10 is quite dark and rotates more slowly than almost any other body orbiting the sun, taking close to 45 hours to complete its daily spin.

New observations say the dark color reflected by Snow White is actually a reddish tinge, perhaps because of the presence of methane ices and the larger size.

"Our revised larger size for 2007 OR10 makes it increasingly likely the planet is covered in volatile ices of methane, carbon monoxide and nitrogen, which would be easily lost to space by a smaller object," said András Pál of Konkoly Observatory in Budapest, Hungary and lead author of a study about 2007 OR10.

"It's thrilling to tease out details like this about a distant, new world -- especially since it has such an exceptionally dark and reddish surface for its size."

Astronomers Meg Schwamb, Mike Brown and David Rabinowitz discovered 2007 OR10 in 2007 as part of a survey to search for distant solar system bodies using the Samuel Oschin Telescope at Palomar Observatory near San Diego, California. They'll give the planet a more fitting name than Snow White.

Perhaps they want to turn to the Twitterverse for help.

TagsSnow White, 2007 OR10, NASA, András Pál, Meg Schwamb, Mike Brown and David Rabinowitz