Sedna... New Planet discovered about 10 years and 11 months ago... :)

The discovery of a distant dwarf planet beyond the edge of our solar system suggests that there may be a lot more beyond the system's perimeter than meets the eye. The image is a composite of three images, the position of the red, green and blue dots indicates the movement of the new dwarf planet.

The discovery of a distant dwarf planet in the far reaches of our solar system suggests that there may be a lot more beyond the system's perimeter than meets the eye.

The new dwarf planet, known for the time being as 2012 VP113, is only the second such object to be found orbiting the outer perimeter of our solar system in a region known as the Oort cloud. However, the dwarf planet's discovery hints that there may be many more of these distant and icy worlds that we have not yet seen in our own stellar backyard.

The orbit of this new dwarf planet - which lurks about 250 times farther away from the Sun than Earth - is likely influenced by an even bigger planet hiding somewhere in the dim reaches of the solar system. The object is so distant that astronomers had not ever seen an object moving so slowly through space, according to a report on the Nature Blog.

Astronomers are theorizing that the same mystery plant could also influence the orbit of the other only known dwarf planet in the Oort Cloud, an object known as Sedna.

Writing in the journal Nature, Scott Sheppard of the Carnegie Institution of Science and Chadwick Trujillo of the Gemini Observatory report that there are likely many more objects are waiting to be found in the Oort Cloud and that an enormous planet, perhaps up to 10 times the size of Earth, is also influencing the orbit of these dwarf planets from a currently unknown location.

Based on the swath of sky the astronomers surveyed - equal to the space about 220 full Moons would take up - the they concluded that around 900 objects with orbits like Sedna and 2012 VP113 and a size greater than 1,000 kilometers across are out there waiting to be found. The researchers are currently tracking at least six potential candidates.

At about 450 kilometers across 2012 VP113 is about half the size of Sedna and is likely made of ice, the researchers report.

The astronomers estimate that it takes about 4,000 years for the dwarf planet to orbit the Sun.

Michael Brown, a planetary astronomer at the California Institute of Technology in Pasadena, told the Nature blog that astronomers have long been searching for objects like Sedna, and now finding one reduces the chances of Sedna being a fluke.

 Either way, the distance of the newfound dwarf planet is staggering. The object gets no closer than 12 billion kilometers from the Sun and at is farthest point is some 67 billion kilometers away from the star it orbits. Earth, on the other hand is just 149 million km from the Sun, and even Neptune - the most distant planet - is only 4.5 billion km away.

This Planet was discovered by discovered by Michael Brown,Chad Trujillo and David Rabinowitz on November 14, 2003........