Umbriel with approximate topography scaled one in ten million

prusaprinters

Originally published here: Umbriel with approximate topography scaled one in ten million by tato_713 - ThingiverseThis model is not based on a topographical map, there is not enough good images to make one, this is based on a high contrast polar map from the USGS site, from which the shadows where interpreted as slopes, so the model is something like an integration of the original one in the spherical elevation coordinate. When the Voyager 2 probe reach Uranus, the system where pointing its north pole of rotation to the Sun. Sometimes, because the south pole or the south hemisphere are defined as the one pointing to the south of the Earth reference, and the right hand rule north pole is 98° tilted (8 degrees to the south), the then visible part is considered to be the south one. I prefer to follow the right hand rule for all my post, so the mapped parts will be the north ones.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. U2 UmbrielUmbriel is the darkest of the moons of Uranus. It is full of craters like almost every body without an atmosphere. This means that it, and the rest of the moons of the Uranian System, were formed before the Late Heavy Bombardment.Type: Satellite. Orbit: Uranus Orbital period: 4.144 d. Composition: Icy body, differentiated interior, rocky mantle. Density: 1.39 g/cm3. Dimensions: 1169.4 km. Model scale: 1:1x107 (12cm) 1:2x107 (6cm)Referenceshttps://astrogeology.usgs.gov/search/map/Oberon/Nomenclature/umbriel\_titania\_oberon\_I-1920\_300dpiSurf to STL function for MATLAB Other astronomical objectsInner Solar SystemArtificialNear Earth AsteroidsMain Belt AsteroidsJovian SystemSaturn SystemUranian SystemNeptunian SystemCentaursCometsTrans Neptunian ObjectsExtrasolar ObjectsSky MapsAncientSpeculativeScience Fiction