21. Salacia has the lowest albedo and density known of any known big trans-Neptunian object. 22. If a massive trans-Neptunian object exists, may be co-orbital with it. 23. Most notably are and, a Neptune trojan and a trans-Neptunian object, respectively. 24. This trans-Neptunian population is thought to be the source of many short-period comets. 25. Some studies estimate that up to 15 % of all trans-Neptunian objects could have satellites. 26. It was one of the largest known trans-Neptunian objects at the time of the discovery. 27. Ceres as well as Pluto and several other large Trans-Neptunian objects belong to this category. 28. He predicted the existence of a trans-Neptunian planet fifty years before the discovery of Pluto. 29. Assuming a generic trans-Neptunian albedo of 0.09, it is about in diameter. 30. Some large asteroids and other named trans-Neptunian objects make use of this template as well.
