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The largest of these may have a hydrostatic-equilibrium shape, but most are irregular. Most of the trans-Neptunian objects (TNOs) listed with a radius smaller than 200 km have "assumed sizes based on a generic albedo of 0.09" since they are too far away to
Pluto (minor-planet designation: 134340 Pluto) is a dwarf planet in the Kuiper belt, a ring of bodies beyond the orbit of Neptune. It is the ninth-largest and tenth-most-massive known object to directly orbit the Sun. It is the largest known trans-Neptunian object by volume by a small margin, but is less massive than Eris.
The portions of Pluto's surface mapped by New Horizons (in enhanced color). Center is 180 degrees longitude (diametrically opposite the moon Charon). The bright area in the center is Tombaugh Regio. The dark area to the west is Cthulhu Macula. The series of dark areas to the east are the "Brass Knuckles".
The correct number is 3.7 billion miles.) What was discovered in Flagstaff, Arizona, and killed off in Prague? ... Pluto was always in a tough spot when it came to being a planet. Just 1,477 miles ...
Dymaxion map of the world with the 30 largest countries and territories by area. This is a list of the world's countries and their dependencies, ranked by total area, including land and water. This list includes entries that are not limited to those in the ISO 3166-1 standard, which covers sovereign states and dependent territories.
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Particularly notable is the lightened area shaped like a donut, and another which ... NASA has released a map of Pluto's surface made from images recently taken by the New Horizons probe and it ...
Eris has been measured at 2,326 ± 12 kilometres (1,445 ± 7 mi) in diameter; [12] its mass is 0.28% that of the Earth and 27% greater than that of Pluto, [23] [24] although Pluto is slightly larger by volume. [25] Both Eris and Pluto have a surface area that is comparable to that of Russia or South America. Eris has one large known moon, Dysnomia.