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The total mass of ice in Uranus's interior is not precisely known, because different figures emerge depending on the model chosen; it must be between 9.3 and 13.5 Earth masses. [17] [83] Hydrogen and helium constitute only a small part of the total, with between 0.5 and 1.5 Earth masses. [17]
Mass: kg:E 1.9855 × 10 30 332,978.9 ... (Uranus and Neptune). When excluding the Sun, the four giant planets account for more than 99% of the mass of the Solar ...
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.
The choice of solar mass, M ☉, as the basic unit for planetary mass comes directly from the calculations used to determine planetary mass.In the most precise case, that of the Earth itself, the mass is known in terms of solar masses to twelve significant figures: the same mass, in terms of kilograms or other Earth-based units, is only known to five significant figures, which is less than a ...
After Miranda, Ariel is the second-closest of Uranus's five major rounded satellites. Among the smallest of the Solar System's 20 known spherical moons (it ranks 14th among them in diameter), it is believed to be composed of roughly equal parts ice and rocky material. Its mass is approximately equal in magnitude to Earth's hydrosphere.
The ice giants Uranus and Neptune live up to their name. Although humans have only ever sent one spacecraft (Voyager 2) toward these far-flung worlds, scientists have a pretty good idea that these ...
Launch mass: 7,235 kg (15,950 lb) [1] Dry mass: 2,756 kg (6,076 lb) [1] Payload mass ... The Uranus Orbiter and Probe is an orbiter mission concept to study Uranus ...
Percentage of the adult population that reports a body mass index (BMI) greater than or equal to 30 kg/m2. Percentage of adults age 18 and over reporting no leisure-time physical activity.