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3.4 km (2.1 mi) Norgay Montes, Tombaugh Regio [72] 45 K [73] 35 K [73] Eris: 41 K [74] 30 K [74] Makemake: Haumea: The bodies included in this table are: (1) planemos; (2) major planets, dwarf planets, or moons of major or dwarf planets, or stars; (3) hydrostatically round so as to be able to provide a geodetic datum line.
Many TNOs are often just assumed to have Pluto's density of 2.0 g/cm 3, but it is just as likely that they have a comet-like density of only 0.5 g/cm 3. [ 4 ] 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 ...
Least dense Kepler-51d: Kepler-51 [41] 0.0381 ± 0.0085 g/cm 3 [42] Next least dense are the hot Jupiter HAT-P-67b with about 0.044 g/cm 3 and the super-Neptune planet WASP-193b with 0.059 ± 0.014 g/cm 3. [43] A predicted highly evaporating planet was proposed to orbit the star FU Orionis north with a density of about 0.0042 g/cm 3. [d]
The planet is located some 1,200 light-years away. A light-year is 5.8 trillion miles. It's the second-lightest exoplanet found so far based on its dimensions and mass, according to the researchers.
The planet is slightly less massive than Jupiter (0.919 ± 0.073 M J) but its diameter is 84% larger. This give TrES-4 an average density of only about a third of a gram per cubic centimetre, approximately the same as Saturn's moon Methone. At the time of its discovery in 2007, TrES-4 was both the largest-known planet and the planet with the ...
They are cooler and less massive than the inflated low-density hot-Jupiters. [1] The most extreme examples known are the three planets around Kepler-51 which are all Jupiter-sized but with densities below 0.1 g/cm 3. [1] These planets were discovered in 2012 but their low densities were not discovered until 2014. [2] Another example is Kepler ...
Uranus's mass is roughly 14.5 times that of Earth, making it the least massive of the giant planets. Its diameter is slightly larger than Neptune's at roughly four times that of Earth. A resulting density of 1.27 g/cm 3 makes Uranus the second least dense planet, after Saturn.
On April 4, 2024, four planets will align on the same side of the sun as Earth. ... there will be three planetary alignments with one including all planets. The last time all eight planets were ...