A history lesson (Skip if you wish):
As many of you may already know, Pluto has been striped of its title as a planet and is now a dwarf planet. The controversy concerning whether or not Pluto is deservent of its title as a planet has been around for years. Mainly due to its irregularity (an outer planet composed of dust and ice) and its size (smaller than some moons). Well, after a few years and the discover of other bodies beyond Pluto (one of which bigger than Pluto), the IAU decided to place some requirements as to what an object must be in order to be classified as a planet. They are as follows:
Pluto, failing the third requirement (it crosses through another planets orbit), lost its former title as a planet.
Personally I find that the IAU's standards are stupid. Plain stupid. The third one anyways.
The third one says that the object's orbit must not cross any other objects' orbits. That's just silly. Seeing as Earth itself, crosses into the orbit of several thousand objects close to its size. Does that make our planet a dwarf one as well?
In fact, Mars' and Jupiter's orbits crosses others' as well. Why aren't they demoted.
All in all, if the IAU decides to demote a planet, they should at least have a good reason to.
That's my opinion on Pluto's demotion. How about sharing your view on this?
As many of you may already know, Pluto has been striped of its title as a planet and is now a dwarf planet. The controversy concerning whether or not Pluto is deservent of its title as a planet has been around for years. Mainly due to its irregularity (an outer planet composed of dust and ice) and its size (smaller than some moons). Well, after a few years and the discover of other bodies beyond Pluto (one of which bigger than Pluto), the IAU decided to place some requirements as to what an object must be in order to be classified as a planet. They are as follows:
1. The object must be in orbit around the Sun.
2. The object must be massive enough to be a sphere by its own gravitational force. More specifically, its own gravity should pull it into a shape of hydrostatic equilibrium.
3. It must have cleared the neighbourhood around its orbit.
2. The object must be massive enough to be a sphere by its own gravitational force. More specifically, its own gravity should pull it into a shape of hydrostatic equilibrium.
3. It must have cleared the neighbourhood around its orbit.
Personally I find that the IAU's standards are stupid. Plain stupid. The third one anyways.
The third one says that the object's orbit must not cross any other objects' orbits. That's just silly. Seeing as Earth itself, crosses into the orbit of several thousand objects close to its size. Does that make our planet a dwarf one as well?
In fact, Mars' and Jupiter's orbits crosses others' as well. Why aren't they demoted.
All in all, if the IAU decides to demote a planet, they should at least have a good reason to.
That's my opinion on Pluto's demotion. How about sharing your view on this?






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