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16 sie 2006 · The new proposed definition of a planet is: a celestial body with sufficient mass to assume a nearly spherical shape that orbits a star without being another star or a satellite of another...
24 sty 2018 · The most recent new planet definition comes from a Johns Hopkins astronomer, Kevin Schlaufman. Read three earlier planet definitions below. Schlaufman’s definition is based on mass.
11 lip 2024 · Planetary scientists are proposing a new definition of a planet to replace one that many researchers view as sun-centric and outdated. The current definition—established in 2006 by the ...
20 lip 2024 · As noted, the motivation of this study was derived from IAU Resolution B5 in 2006 that established a new definition of a planet, which resulted in Pluto being demoted from planet to dwarf planet based on the new criteria.
11 lip 2024 · The current definition — established in 2006 by the International Astronomical Union, or IAU, the organization that officially names objects in space — specifies that to qualify as a planet, a celestial body must orbit the sun within our solar system.
22 lip 2024 · Bottom line: When the International Astronomical Union created a definition for “planet” in 2006, Pluto lost full planet status. Now astronomers are proposing a new definition of “planet.”
The new proposed definition specifies that the body may orbit one or more stars, brown dwarfs or stellar remnants and sets mass limits that should apply to planets everywhere.
