474640 Alicanto

Alicanto was discovered by American astronomer A. C. Becker with the ESSENCE supernova survey on 6 November 2004 observing with the 4-meter Blanco Telescope from Cerro Tololo Inter-American Observatory.

With a perihelion greater than 40 AU, Alicanto is an extreme trans-Neptunian object which are practically detached from Neptune's gravitational influence.

[9][12] On 14 May 2021, the object was named by the Working Group for Small Bodies Nomenclature (WGSBN) after Alicanto from Chilean mythology.

[7] Michael Brown's website lists it as a possible dwarf planet with a diameter of 314 kilometres (195 mi) based on an assumed albedo of 0.04.

[9][13] The value of its spectral slope suggests that the surface of this object can have pure methane ices (like in the case of Pluto) and highly processed carbons, including some amorphous silicates.

Alicanto's orbit in red with hypothetical Planet Nine
The orbits of Sedna , 2012 VP 113 , Leleākūhonua , and other very distant objects along with the predicted orbit of Planet Nine . The three sednoids (pink) along with the red-colored extreme trans-Neptunian object (eTNO) orbits are suspected to be aligned with the hypothetical Planet Nine while the blue-colored eTNO orbits are anti-aligned. The highly elongated orbits colored brown include centaurs and damocloids with large aphelion distances over 200 AU.