March 5, 2021
Description
Originally published here: Largest TNOs and their moons shapes scaled one in ten million by tato_713 - Thingiverse
This could looks like a lazy post. The idea of this was to make scaled models of the biggest Trans Neptune Objects that are not known for anything aside their diameters, scaled at the same scale of some of my other models. All models are just scaled spheres because most of them are probably hydrostatically relaxed. Pluto and Haumea have their own posts, and they are excluded from this one; Pluto because of being widely known after the New Horizons flyby, and Haumea because of its very elongated shape. The discovery of these minor planets promoted the 2006 planet reclassification, that finished the status of Pluto as a planet. The objects represented here are listed below in other sections, and they are sorted by the distance to the Sun (actually by their orbital period). The scale of the models is 1 in 10^7 or one in ten million, and one in twenty million for several of these.
The file's names explained:name_1_x_10_y.stl is 1 : x * 10^y. So _1_6_10_7 is 1:600000000 or one in 60 million.
Orcus is often called the "anti-Pluto" because it share a similar orbit (2:3 resonance with Neptune) but with the eccentricity in the opposite direction. When Pluto is at the aphelion, Orcus is at the perihelion.
Similar to Charon with Pluto, Vanth is about a half of the diameter of its parent body, Orcus. Because of the low mass ratio parent-moon, the system can be considered a binary minor planet. The barycenter of the system is outside Orcus and both of them are probably tidal locked with each other.
Like all the object in this post, 2002MS4 is listed as a possible dwarf planet. But bodies with less than 1000 km in diameter have dubious composition. If the surface is old and undisturbed, it means that it has never been heated enough to be differentiated and in hydrostatic equilibrium.
Quaoar was one of the first likely dwarf planet to be discovered. It is a good target for been explored since there were observed signs of cryovolcanism.*Type: TNO. Cubewano. *Orbit: Sun. Kuiper belt.
Makemake is one of the recognised dwarf planet. It is the biggest member of the Classical Kuiper Belt object or cubewanos (after the former QB1, now Albion). This group is composed by objects that are not scattered nor resonant. They have low eccentricity and inclination on they orbits.
It is the only known moon of Makemake.
Varda and its only known moon Ilmarë were named after characters of J. R. R. Tolkien's literature.
Gonggong is likely a dwarf planet, even with the lowest estimations of size. It is classified both as a Scattered Disk Object and a resonant TNO because of a 3:10 resonance with Neptune. Like many TNOs it has at least one satellite, which is too small to be included in this list.
Eris is one of the firsts recognised dwarf planets. It is the most massive body in the Solar System that is not a planet, a moon or an star, slightly more massive but smaller than Pluto. It is the biggest object of a group named Scattered Disk, a disk of minor planets scattered by interactions with the outer planets. Eris is also one of the most distant observable objects, because its big size and high albedo (whiteness), and the biggest object known in the Solar System yet not visited by an spacecraft.
It is the moon of Eris. Like Charon with Pluto, Dysnomia is quiet big compared with its parent body.
Sedna is the prototype and the biggest member of a type of minor planet named sednoids. It is also the biggest object orbiting around the sun without moon known yet. The sednoids have very elongated non resonant orbit, with a high perihelion. It has been theorized that they are scattered by an unknown object sized between Earth and Neptune, nicknamed "Planet Nine". If this object exist it would be a planet and it must have a large eccentric orbit, which would make it nearly impossible to detect.
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