Sednoid
A Sednoid in astronomy is a small object like a small solar system body, that goes around the Sun beyond Neptune's orbit, similar to the orbit of the dwarf planet Sedna. There are only three known Sednoids:
These sednoids have very eliptical orbits and it could be Planet 9's gravity changing their orbits, or these object's were captured by the Sun.
Sednoid Media
The apparent magnitudes of the three known sednoids.
Discovery image of Sedna, the eponymous and first known sednoid
Orbits and positions of three known sednoids (labeled in pink) and various other extreme trans-Neptunian objects as of 2021
