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11 lip 2024 · Planetary scientists are proposing a new definition for what we can call a planet. If accepted, it would replace the current definition from 2006 that caused an uproar by demoting Pluto to a dwarf planet. The new definition aims to start a conversation about what we call a planet—and what we don’t.
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...
11 lip 2024 · The International Astronomical Union defines a planet as a celestial body that orbits the sun, is massive enough that gravity has forced it into a spherical shape, and has cleared away other objects near its orbit around the sun.
11 lip 2024 · In the new definition, a planet is a celestial body that: orbits one or more stars, brown dwarfs or stellar remnants and. is more massive than 10 23 kg and. is less massive than 13 Jupiter...
24 sty 2018 · The dramatic expansion in the number of known objects orbiting our sun and other suns has caused some astronomers to try to override or re-define the 2006 planet definition from the International...
The International Astronomical Union defines a planet as a celestial body that orbits the sun, is massive enough that gravity has forced it into a spherical shape, and has cleared...
A planet is a celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighborhood around its orbit.
