Ceres may have been based on an external solar system

A map of the northern hemisphere of Ceres by Dawn spacecraft’s Gamma Ray and Neutron Detector, GRaND. Available: NASA / JPL-Caltech / UCLA / ASI / INAF

Dwarf Planet Ceres may be in the asteroid belt between Mars and Jupiter, but its composition and the amount of water indicate that it was formed in the outer system that surrounds it. and other dwarf stars.

Visited by NASA’s Dawn spacecraft in 2015, Ceres is different from all the others in the asteroid belt in many ways. It is 588 miles (946 kilometers) in diameter and is spherical because it is surrounded by gravity. Two other players in the belt, Vesta and Pallas, are close to the ball.

Although asteroids make up the bulk of the rock formations recorded by chemical agents, Ceres has the shape and complexity of Earth, and its size is about a third of the size of the belt. asteroid.

Like the rest of the world, Ceres is divided into, clothes, and trash. His neck, or skin, as Dawn described, was a mixture of water with clay and carbonates. His clothes were water ice and his base was made of stone.

Beneath its surface, Ceres can be trapped in remnants of the ocean floor, such as those on Pluto and ice moons such as Europe and Enceladus.

Ceres’s surface contains high levels of ammonia, which is not found in other parts of the asteroid belt but is more common in the outer system. The heat from the Sun often dissipates ammonia in the land between Mars and Jupiter. Far -flung countries like the Kuiper Belt are colder, so substances like ammonia are more common.

With a low latitude of 2.2 grams per cubic centimeter and a low latitude, Ceres resembles carbonaceous chondrites, known as C-type asteroids. These are the most common asteroids in the belt, and there are many that are located near Ceres.

However, C-type asteroids are nowhere near as large as Ceres’ water and not in ammonia.

Seeing these differences, a team of scientists led by Rafael Ribeiro de Sousa of the University of Sao Paulo in Brazil believed that Ceres was formed around Saturn’s orbit in a printed paper. in the journal Icarus.

According to one example of the development of the solar system, solar gas and solar ice were formed in the vicinity of the Sun and moved outward in the early years of the solar system. This movement moved small and distant objects like Ceres, some moved in and others were destroyed by the powerful effects and others were completely expelled from the solar system.

This move out of the gas and ice giants could lead Neptune to capture Triton, his largest moon, who is thought to have orbited the Sun on his own.

“The results of our numerical simulation support the hypothesis that some large planetetimals Ceres from the trans-Saturn planet have been incorporated into the asteroid belt by a combination of close associations with large planets, including other protoplanets, gas pull, chaotic diffusion, and mean motion resonances with Jupiter, ”the researcher wrote in the paper.

According to computer simulations run by researchers, as many as 3,500 small stars of the size of Ceres lived in the solar system so that one could survive the many collisions of the first years of the universe. Solar system and end the area of ​​Ceres. .

Tagged: ammonia Ceres Dawn dwarf planet The Range Water

Laurel Kornfeld

Laurel Kornfeld is an astronomer and freelance writer from Highland Park, NJ, who enjoys writing about astronomy and earth science. He studied journalism at Douglass College, Rutgers University, and earned a bachelor of science degree from Swinburne University’s Online Astronomy program. His papers have been published online in The Atlantic, Astronomy magazine’s guest blog section, the UK Space Conference, the 2009 IAU General Assembly newspaper, The Space Reporter, and newspapers of various astronomy organizations. He is a member of Cranford, NJ-based Amateur Astronomers, Inc. With great interest in the outdoor solar system, Laurel gave a briefing at the 2008 Great Planet Debate held at the Johns Hopkins University Applied Physics Lab in Laurel, MD.

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