Ganymede with exaggerated topography scaled one in sixty million

cults3d

This model was updated using the topographic map present on Steinbrügge (2019), exaggerated 30 times, since Ganymede topography is really flat. It was rendered using MATLAB R2016a. The file's names explained: name_1_x_10_y.stl is 1 : x * 10y. So _1_6_10_7 is 1:600000000 or one in 60 million. J3 Ganymede Ganymede is the largest moon of Jupiter as well as of the Solar System. It's sometime called a "planet like moon", being larger in diameter than Mercury, but having a 45% of the planet mass. This is because it's largely composed of water ice, being the largest "icy body" (aka. an object composed of a great fraction of water, with a solid surface). Water is one of the least viscous material of celestial bodies. That's why objects with ice composition can be rounded at smaller size, like Mimas; or bigger objects like Ganymede can be extremely rounded, because when a moon or an asteroid melts (usually in its early history) it turns into a rounded shape, and a less viscous material could easily flow to fill the irregular terrain. Ganymede has a fully differentiated nucleus, rich in iron, which makes it the only moon with a substantial magnetic field. Its surface has two main types of geography: one old, dark, heavily cratered, similar to that of Callisto, and a younger, lighter and grooved terrain. However, this difference is not visible because of the low resolution of the topographical maps. Io, Europa and Ganymede are locked in a 1:2:4 orbit resonance, which means that each Ganymede's orbit around Jupiter, Europa makes 2, and Io makes 4. Type: Satellite. Orbit: Jupiter. Orbital period: 7.154 d Composition: Icy body. Differentiated interior. Subsurface ocean. Density: 1.936 g/cm3. Dimensions: 5268.2 km Model scale: 1:6x107 (9cm) 1:1.2x108 (4cm) References Steinbrügge, Gregor & Steinke, Teresa & Thor, Robin & Stark, Alexander & Hussmann, Hauke. (2019). Measuring Ganymede’s Librations with Laser Altimetry. Geosciences. 9. 320. 10.3390/geosciences9070320.Surf to STL function for MATLAB Other astronomical objects Object Scale [1:x] K = 103 (thousand)M = 106 (million)G = 109 (billion) Image Inner Solar System Mercury 20M, 60M, 120M Venus 60M, 120M, 250M Earth 60M, 120M, 250M Luna 10M, 20M, 60M Mars 20M, 60M, 120M Phobos and Deimos 200K, 500K Artificial Salyut 7 40, 48, 80, 160 Near Earth Asteroids Moshup and Squannit 8K, 20K, 40K Ra-Shalom 20K, 40K Castalia 8K, 20K, 40K Bacchus 8K, 20K Bennu 3K, 8K Ryugu 3K, 8K, 20K Geographos 40K, 80K Phaethon 40K, 80K Itokawa 3K, 8K Eros 80K, 200K, 500K Nereus 3K, 8K Mithra 20K, 40K Golevka 8K Toutatis 40K, 80K Main Asteroid Belt Gaspra 200K Annefrank 40K, 80K Braille 20K, 40K Vesta 2M, 4M, 10M Šteins 40K, 80K, 200K Iris 2M, 4M Hebe 1M, 2M, 4M Lutetia 500K, 1M, 2M Julia 1M, 2M, 4M Mathilde 500K, 1M Juno 2M, 4M Ceres 4M, 10M Pallas 4M, 10M</