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10 Hygiea is a major asteroid located in the main asteroid belt.With a mean diameter of between 425 and 440 km and a mass estimated to be 3% of the total mass of the belt, [11] it is the fourth-largest asteroid in the Solar System by both volume and mass, and is the largest of the C-type asteroids (dark asteroids with a carbonaceous surface) in classifications that use G type for 1 Ceres.
Location and structure of the Hygiea family. By far the largest member is 10 Hygiea, a 400 km diameter C-type asteroid that is the fourth largest in the belt. The remaining members are much smaller so Hygiea contains about 94–98% of the mass in the family (depending on the exact criteria for inclusion).
The largest asteroids with an accurately measured mass, because they have been studied by the probe Dawn, are 1 Ceres with a mass of (939.3 ± 0.5) × 10 18 kg, and 4 Vesta at (259.076 ± 0.001) × 10 18 kg. The third-largest asteroid with an accurately measured mass, because it has moons, is 87 Sylvia at (14.76 ± 0.06) × 10 18 kg.
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.
Because planes are smaller, however, they only make up about 14% of the number of seats flown, according to aviation analytics firm Cirium. For many flyers, those seats are their only choice.
February 18, 2025 at 10:28 AM. Be it grease-covered cooktops, unsightly pet stains, ...
10 Hygiea is part of the ... I have a newer source listing Mass ≈ 8.07×10 19 Kg ... The Chelsey number also appears the most trustworthy by itself because it is ...
TikTok went dark for 170 million US users on Saturday. Users took to other corners of the internet to react to the shutdown. Internet personality James Charles, who boasted over 40 million ...