why is Pluto no longer considered to be a planet
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It doesn't possess any characteristics of a planet......hence it is referred as dwarf planet
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Heya
If we ask our parents or grandparents of how many planets were in the solar system according to the textbooks they used at school, they'd say that they were 9.
But in 2006, Pluto was considered no more as a planet and was declared that there are just 8 planets in the solar system.
It was demoted to the status of a dwarf planet in 2006.
In 2006, the members of international astronomical union (IAU) defined a celestial body as a planet,:
(1) is in orbit around the sun
(2) has sufficient mass to assume nearly round shape, to attain hydrostatic equilibrium
(3) has cleared the neighborhood around its orbit.
While Pluto satisfies (1) and (2) , it doesn't dominate the neighborhood around it's orbit.
A dwarf planet is a one which satisfies her first two of the three.
For Pluto to become a true planet, it has to clear the things in its orbit.
If we ask our parents or grandparents of how many planets were in the solar system according to the textbooks they used at school, they'd say that they were 9.
But in 2006, Pluto was considered no more as a planet and was declared that there are just 8 planets in the solar system.
It was demoted to the status of a dwarf planet in 2006.
In 2006, the members of international astronomical union (IAU) defined a celestial body as a planet,:
(1) is in orbit around the sun
(2) has sufficient mass to assume nearly round shape, to attain hydrostatic equilibrium
(3) has cleared the neighborhood around its orbit.
While Pluto satisfies (1) and (2) , it doesn't dominate the neighborhood around it's orbit.
A dwarf planet is a one which satisfies her first two of the three.
For Pluto to become a true planet, it has to clear the things in its orbit.
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