The one thing that always bugs me about the "Must clear it's neighbourhood of debris" criteria is that: How do Astronomers know that Mercury cleared it's neighbourhood of debris? The orbit is clear of debris, sure, but how do they know incredibly small Mercury is responsible for it? Is it really likely Mercury should get the credit or did the immensly massive Sun did it for Mercury? Because if the sun do it? Because if the Sun did, then Mercury should equally be demoted to Dwarf Planet.
Good point. Yeah, that definition does make things a lot more complicated. Also, that means that for part of Earth's early history. Earth wasn't a planet because there was still a lot of debris still there.
Well, yes the definition of planet is completely arbitrary and maybe even the concept of a planet is slightly outdated. At what point does something go from an asteroid to a dwarf planet, dwarf planet to a normal planet and a planet to a star? As usually in science the lines aren't really clear and quite fuzzy.
The part of the definition I disagree with is the "planet has cleared its neighborhood". There are trojan asteroids in Jupiter and Earth's orbit. Does that mean they haven't cleared the neighborhood? Pluto seems more active than Mercury by far. I will always consider Pluto a planet.
It is a tricky definition, but they don't mean that every object has been cleared just that the remaining objects are relatively small. Jupiter is so massive that all its trojans are very small by comparison. They have tried to compute statistics on all these. See the "numerical values" section in this article: en.wikipedia.org/wiki/Clearing_the_neighbourhood
Thank you for making this video! Pluto is my favorite planet, and I 100% agree with you: instead of saying that "dwarf planets" are not planets (...which makes no sense...), they should say that full planets AND dwarf planets are all planets. 🙂
Does a planet really need to "clear" its orbit? I mean jupiter has trojan asteroids in its orbit even earth has trojan asteroids and earth's orbit is NOT a perfect circle and what about rogue planets? especially those that are 13 masses of Jupiter
By clearing its orbit, they don't mean nothing is there. They mean that what's there is much smaller than the planet. They've come up with a couple different ways of measuring how clear the orbit is: en.wikipedia.org/wiki/Clearing_the_neighbourhood
So either there are 8 planets in your solar system, or there are potentially hundreds or even thousands. Personally, I am pretty firmly in the "Pluto is not a planet" camp.
I think there all planets big or small. One theory. Pluto could be using those asteroids as protection and maby its not pulling them in because its protecting its self.
Well, I just learned that the planets in our solar system orbit the sun on a relatively flat plane... I have always assumed that that was just a simplification in all the demonstrations on orbits... PLEASE do a video on this topic... Mind blown...
I've always thought of Pluto as a giant comet. It displays all the main comet attributes. Highly elliptical and eccentric orbit. Grows an atmosphere and a tail when closer to the Sun that falls back down towards aphelion. That way Pluto becomes King of it's class, and should reduce the whining about poor poor Pluto.
You have amazing graphics and you put so much work in your videos. It is amazing
Thank you!
Dwarf planets are planets too.
Yeah.....no need to be so racist
Yeah, they have feelings
i mean "dwarf planet" does have the word "planet" so yea
What about rogue planets? They don't have a star!
The one thing that always bugs me about the "Must clear it's neighbourhood of debris" criteria is that: How do Astronomers know that Mercury cleared it's neighbourhood of debris? The orbit is clear of debris, sure, but how do they know incredibly small Mercury is responsible for it? Is it really likely Mercury should get the credit or did the immensly massive Sun did it for Mercury? Because if the sun do it? Because if the Sun did, then Mercury should equally be demoted to Dwarf Planet.
Good point. Yeah, that definition does make things a lot more complicated. Also, that means that for part of Earth's early history. Earth wasn't a planet because there was still a lot of debris still there.
Well, yes the definition of planet is completely arbitrary and maybe even the concept of a planet is slightly outdated. At what point does something go from an asteroid to a dwarf planet, dwarf planet to a normal planet and a planet to a star? As usually in science the lines aren't really clear and quite fuzzy.
The part of the definition I disagree with is the "planet has cleared its neighborhood". There are trojan asteroids in Jupiter and Earth's orbit. Does that mean they haven't cleared the neighborhood? Pluto seems more active than Mercury by far. I will always consider Pluto a planet.
It is a tricky definition, but they don't mean that every object has been cleared just that the remaining objects are relatively small. Jupiter is so massive that all its trojans are very small by comparison. They have tried to compute statistics on all these. See the "numerical values" section in this article: en.wikipedia.org/wiki/Clearing_the_neighbourhood
i like those 3d planet animations
I love this one! So good!!
Thank you for making this video! Pluto is my favorite planet, and I 100% agree with you: instead of saying that "dwarf planets" are not planets (...which makes no sense...), they should say that full planets AND dwarf planets are all planets. 🙂
this channel is underrated
The geophysical planet definition reigns supreme. And yes, dwarf planet is a type of planet, along with giant planet and terrestrial planet.
Does a planet really need to "clear" its orbit? I mean jupiter has trojan asteroids in its orbit even earth has trojan asteroids and earth's orbit is NOT a perfect circle and what about rogue planets? especially those that are 13 masses of Jupiter
By clearing its orbit, they don't mean nothing is there. They mean that what's there is much smaller than the planet. They've come up with a couple different ways of measuring how clear the orbit is:
en.wikipedia.org/wiki/Clearing_the_neighbourhood
I like the animations, so cuteeeee
Do they say anything regarding twin-planets? (compared to a planet + moon system)
So either there are 8 planets in your solar system, or there are potentially hundreds or even thousands. Personally, I am pretty firmly in the "Pluto is not a planet" camp.
Captured from planet x.
Yes!
I think there all planets big or small.
One theory. Pluto could be using those asteroids as protection and maby its not pulling them in because its protecting its self.
Well, I just learned that the planets in our solar system orbit the sun on a relatively flat plane... I have always assumed that that was just a simplification in all the demonstrations on orbits... PLEASE do a video on this topic... Mind blown...
It's a baby dwarf
You explain compared to other planets why we have so Manet planets in our Solar System?
Astronomers must hate FFXIV since they call planets stars
So Saturns a dwarf planet too then because of its rings/debris?
Plutos a planet lol.
1:14 Thank me later.
What's at 1:14
@@smerrell1987 He just wanted us to know that astronomers have been keeping an eye on Uranus.
I've always thought of Pluto as a giant comet. It displays all the main comet attributes. Highly elliptical and eccentric orbit. Grows an atmosphere and a tail when closer to the Sun that falls back down towards aphelion. That way Pluto becomes King of it's class, and should reduce the whining about poor poor Pluto.
Way to go Mexico! Way to go!
Edit: why they demoted Pluto? to start conversations, re-print books and because they need a wage.