A team of astronomers believe they may have discovered a new dwarf planet—just like Pluto—on the edge of our solar system.

The object—which orbits out beyond Neptune—has been named "2017 OF201" by the team, which was led by Sihao Cheng of the Institute for Advanced Study in Princeton, New Jersey.

Cheng and colleagues estimate that the body has a diameter of more than 430 miles, which means that it may be large enough to qualify as a dwarf planet.

While further observations are required to determine its exact size, current estimates suggest that 2017 OF201 is the second-largest known object in such a wide orbit.

So-called "trans-Neptunian objects" (TNOs) like 2017 OF201 can vary dramatically in size—from as large as 1,477 miles in diameter (i.e. Pluto) down to just 22 miles like the pea

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