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For example, if a TNO is incorrectly assumed to have a mass of 3.59 × 10 20 kg based on a radius of 350 km with a density of 2 g/cm 3 but is later discovered to have a radius of only 175 km with a density of 0.5 g/cm 3, its true mass would be only 1.12 × 10 19 kg.
1.4 m 1.2 cm 150 m 5.9 km permanent; walkable Grand Trunk Pathway Solar System Model Terrace, British Columbia: 1,000,000,000 1.4 m 1.3 cm 150 m 6 km permanent; walkable/bikeable (est. 2018) Planet Walk Munich, Germany: 1,290,000,000 1.1 m 1.0 cm 116 m 4.6 km permanent; walkable (est. 1995) Strolling at the speed of light
English: Comparison of angular diameter of the Sun, Moon and planets with the International Space Station (as seen from the surface of the Earth), the 20/20 row of the Snellen eye chart at the proper viewing distance and typical human visual acuity. The dotted circles represent the minimum angular size (when the celestial bodies are farthest ...
Sedna (10 cm (3.9 in) in diameter), another dwarf planet candidate, is located at Teknikens Hus, a science center in Luleå, 734 km (456 mi) from the Globe. This represents a distance of about 15 billion km; Sedna has a highly elliptical orbit, its distance from the Sun varying between 11 and 140 billion km.
The planet Earth has a rather slight equatorial bulge; its equatorial diameter is about 43 km (27 mi) greater than its polar diameter, with a difference of about 1 ⁄ 298 of the equatorial diameter. If Earth were scaled down to a globe with an equatorial diameter of 1 metre (3.3 ft), that difference would be only 3 mm (0.12 in).
The sizes are listed in units of Jupiter radii (R J, 71 492 km).This list is designed to include all planets that are larger than 1.6 times the size of Jupiter.Some well-known planets that are smaller than 1.6 R J (17.93 R 🜨 or 114 387.2 km) have been included for the sake of comparison.
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Vesta (radius 262.7 ± 0.1 km), the second-largest asteroid, appears to have a differentiated interior and therefore likely was once a dwarf planet, but it is no longer very round today. [74] Pallas (radius 255.5 ± 2 km ), the third-largest asteroid, appears never to have completed differentiation and likewise has an irregular shape.