"Sedna (90377 Sedna) is a dwarf planet in the outer reaches of the Solar System that is in the innermost part of its orbit; as of 2022 it is 84 astronomical units (1.26×10^10 km; 0.00041 pc) from the Sun, almost three times farther than Neptune."
"Sedna has the second longest orbital period of any known object in the Solar System of comparable size or larger, calculated at around 11,400 years. Its orbit is extremely eccentric, with an aphelion estimated at 937 AU and a perihelion at about 76 AU."
–Wikipedia