Planet
The smallest known planet is PSR B1257+12A, one of the first extrasolar planets discovered, which was found in 1992 in orbit around a pulsar. Its mass is roughly half that of the planet Mercury. The smallest known planet orbiting a main-sequence star other than the Sun is Kepler-37b, with a mass (and radius) slightly higher than that of the Moon.
2012 VP113
is the minor planet with the farthest known perihelion (closest approach to the Sun) in the Solar System, greater than that of 's. Though its perihelion is farther, has an aphelion only about half that of Sedna's. It is the second discovered sednoid, with semi-major axis beyond and perihelion greater than . The similarity of the orbit of to other known extreme trans-Neptunian objects led Scott Sheppard and Chad Trujillo to suggest that an undiscovered object, Planet Nine, in the outer Solar System is shepherding these distant objects into similar type orbits.