New Dwarf Planets Beyond Neptune in 2025
by Brian Wang from NextBigFuture.com on (#6YQCX)
Ammonite was discovered using the Subaru Telescope in Hawaii, with follow-up confirmation from the Canada-France-Hawaii Telescope. Its orbit and size officially qualify it as a distant dwarf planet. Estimated diameter: 220-380 km Perihelion (closest approach to the Sun): 50-75 AU (1 AU = Earth-Sun distance) Aphelion: ~252 AU Orbit is highly stable and very distant ...