Haumea, Namaka and Hiʻiaka shape scaled one in ten million

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<p>Originally published here: <a href="https://www.thingiverse.com/thing:3321576">Haumea, Namaka and Hiʻiaka shape scaled one in ten million by tato_713 - Thingiverse</a></p><p>This model was made using the length of the axis of the ellipsoid estimated from Dunham (2019). It's scaled to 1 in 10^7 or one in ten million. This is about 20cm in the mayor axis. On this scale the <a href="https://www.thingiverse.com/thing:3419235">Moon</a> is a basketball, and <a href="https://www.thingiverse.com/thing:3513228">Mars</a>' moons <a href="https://www.thingiverse.com/thing:3863992">Phobos and Deimos</a> are 2 and 1 mm respectively.<br>The file's names explained: <i>name_1_x_10_y.stl</i> is 1 : x* 10^y. So _1_6_10_7 is 1:600000000 or one in 60 million.&nbsp;</p><h4>136108 Haumea</h4><p>Because of the rapid changes in its brightness, astronomers calculated a rotation period of 4 hours, which led to the conclusion that Haumea is a Jacobi ellipsoid, with three different diameters. The stellar transits of January 2017 confirmed its elongated shape, but it turned out to be larger than previously thought, resulting in a lower density that casts doubt on whether it is in hydrostatic equilibrium. It has two moons named Namaka and Hi'iaka and a ring with the diameter two times the largest diameter of Haumea.</p><ul><li><strong>Type:</strong> Dwarf planet. TNO. Haumea family&nbsp;</li><li><strong>Orbit:</strong> Sun. Kuiper Belt.&nbsp;</li><li><strong>Orbital period:</strong> 284.12 yr.</li><li><strong>Rotational period:</strong> 3 h 54 min 55 s.</li><li><strong>Composition:</strong> Icy body. Rocky core.&nbsp;</li><li><strong>Density:</strong> 2.018 g/cm3.&nbsp;</li><li><strong>Dimensions:</strong> 2100 km x 1680 km x 1074 km&nbsp;</li><li><strong>Model scale:</strong> 1:1x107 (23cm) 1:2x107 (11cm)</li></ul><h4>H2 Namaka</h4><ul><li><strong>Type:</strong> Satellite.</li><li><strong>Orbit:</strong> Haumea. Very eccentric and inclined&nbsp;</li><li><strong>Orbital period:</strong> 18.278 d.&nbsp;</li><li><strong>Rotational period:</strong> 3 h 54 min .&nbsp;</li><li><strong>Composition:</strong> Icy body.&nbsp;</li><li><strong>Density:</strong> ? g/cm3.&nbsp;</li><li><strong>Dimensions:</strong> 170 km&nbsp;</li><li><strong>Model scale:</strong> 1:1x107 (2cm)</li></ul><h4>H1 Hiʻiaka</h4><ul><li><strong>Type:</strong> Satellite.&nbsp;</li><li><strong>Orbit:</strong> Haumea.&nbsp;</li><li><strong>Orbital period:</strong> 49.462 d.&nbsp;</li><li><strong>Composition:</strong> Icy body.&nbsp;</li><li><strong>Density:</strong> ? g/cm3.&nbsp;</li><li><strong>Dimensions:</strong> 310 km&nbsp;</li><li><strong>Model scale:</strong> 1:1x107 (3cm)</li></ul><h4>References</h4><ul><li><a href="https://iopscience.iop.org/article/10.3847/1538-4357/ab13b3">Haumea's Shape, Composition, and Internal Structure. Dunham (2019).</a></li><li><a href="https://www.mathworks.com/matlabcentral/fileexchange/4512-surf2stl">Surf to STL function for MATLAB&nbsp;</a></li></ul><h3>Other astronomical objects</h3><p><a href="https://www.prusaprinters.org/social/120859-tato_713/collections/49826">Inner Solar System</a></p><p><a href="https://www.prusaprinters.org/social/120859-tato_713/collections/49832">Artificial</a></p><p><a href="https://www.prusaprinters.org/social/120859-tato_713/collections/49820">Near Earth Asteroids</a></p><p><a href="https://www.prusaprinters.org/social/120859-tato_713/collections/49291">Main Belt Asteroids</a></p><p><a href="https://www.prusaprinters.org/social/120859-tato_713/collections/49829">Jovian System</a></p><p><a href="https://www.prusaprinters.org/social/120859-tato_713/collections/49828">Saturn System</a></p><p><a href="https://www.prusaprinters.org/social/120859-tato_713/collections/49830">Uranian System</a></p><p><a href="https://www.prusaprinters.org/social/120859-tato_713/collections/49345">Neptunian System</a></p><p><a href="https://www.prusaprinters.org/social/120859-tato_713/collections/49827">Centaurs</a></p><p><a href="https://www.prusaprinters.org/social/120859-tato_713/collections/49833">Comets</a></p><p><a href="https://www.prusaprinters.org/social/120859-tato_713/collections/49341">Trans Neptunian Objects</a></p><p><a href="https://www.prusaprinters.org/social/120859-tato_713/collections/49824">Extrasolar Objects</a></p><p><a href="https://www.prusaprinters.org/social/120859-tato_713/collections/49837">Sky Maps</a></p><p><a href="https://www.prusaprinters.org/social/120859-tato_713/collections/49831">Ancient</a></p><p><a href="https://www.prusaprinters.org/social/120859-tato_713/collections/49822">Speculative</a></p><p><a href="https://www.prusaprinters.org/social/120859-tato_713/collections/49821">Science Fiction</a></p>