Typically, telescopes are synonymous with bringing far-off objects close, but the newest member of the solar system was discovered using wide-field imaging. The Subaru Telescope has spotted a distant orbiting Sedonite called 2023 KQ14, nicknamed Ammonite by researchers.
Ammonite isn’t a planet, but a member of distant orbiting objects called Sednoids, which are objects beyond Neptune’s orbit with a non-circular orbit around the sun. Ammonite is the fourth Sednoid discovered, but has an orbit that’s significantly different than the earlier three Sednoids. First spotted in 2023, Ammonite was officially shared with the public when researchers published the data on July 14, 2025.
