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Ninjago Planet size issue

Deserved for putting useless link as proof of Astor city non canonicity. If you click on it, you see only Andreasen saying "no" to some deleted tweet. Use this link instead, put it on top of first post and shout "city used as reference for size is non-canonical, calc shouldn't be used", write CGM members on their profiles, and they would probably agree. No need to go about minimum size of habitable planets.
 
Deserved for putting useless link as proof of Astor city non canonicity. If you click on it, you see only Andreasen saying "no" to some deleted tweet. Use this link instead, put it on top of first post and shout "city used as reference for size is non-canonical, calc shouldn't be used", write CGM members on their profiles, and they would probably agree. No need to go about minimum size of habitable planets.
Fixed
 
Probably would try to summarise arguments for "planets can't be smaller than Cuba", with proper scientific backing.
Let's start.
1. Assuming same density as Earth, Ninjago would have 107 times smaller surface gravity. I don't need to explain why this is wrong.
2. To get same surface gravity as Earth, Ninjago would have to have density of 600,000 kg/m^3(30 times greater than most densest materials). Let's roll with it.
3. Assuming same surface gravity, Ninjago planet would have escape velocity of 1.1 km/s(10 times smaller than Earth, 2 times smaller than Moon). It wouldn't be able to retain any kind of atmosphere at all.
I can continue this rant, but it's pretty obvious that Ninjago can't have diameter of 118 km. Given that this value itself comes from non-canonical source, it's better to disregard it completely, and stick to default policy (assume that Ninjago have same dimension as Earth).
 
Why are we assuming the planet is smaller than Earth to begin with?

I haven't seen any evidence in the calcs that this planet should be treated as tiny. Default assumption is that a planet is Earth size until we're given evidence of the contrary.

Note: I haven't taken a detailed look at either of the calcs, so I can't give an opinion on them right now.
 
Why are we assuming the planet is smaller than Earth to begin with?

I haven't seen any evidence in the calcs that this planet should be treated as tiny. Default assumption is that a planet is Earth size until we're given evidence of the contrary.

Note: I haven't taken a detailed look at either of the calcs, so I can't give an opinion on them right now.
Honestly yeah. We should just use default Earth size assumption
 
I haven't seen any evidence in the calcs that this planet should be treated as tiny.

Note: I haven't taken a detailed look at either of the calcs, so I can't give an opinion on them right now.
Just as a note: as I clarified in the beginning of the thread, my calc (which is presented in “solution”) does assume that planet is as big as Earth, and based off that assumption, it merely estimates the “continents” of Ninjago as the continents are clearly different from real world (it is simply a land that FSM split in two during Stone Wars in the past).
 
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