The Devil King AP and Speed Calculation evaluation

[Bossbrosish]

I tried to do a calculation from Neon Cavaliers and I was wondering if I did it right or if I was close to right.

https://fcoc-vs-battles.fandom.com/wiki/User_blog:Bossbrosish/The_Devil_King_AP_and_speed

 

[Furudo_Erika]

Do you still want it to have 100x the gravity of Earth?

 

[Furudo_Erika]

If so, then the GBE is actually closer to 3.691e+41 joules.
Which is Small Star level+

 

[Bossbrosish]

Since im trying to get the planet to be the size a dwarf star i've been trying different numbers, but haven't found a good number yet but I figured a x10 or x15 might be good for the gravity

 

[Furudo_Erika]

Through a large planet doesn't mean strong gravity. A large celestial object can actually have extremely weak gravity.

An example of this is the star "Betelgeuse", which only has a surface gravity of around 0.0003 g, which is more than 3,000x weaker than Earth's gravity. Meanwhile, there are neutron stars which are no larger than a city, being around 10 kilometers in radius, but having gravity hundreds of billions times stronger than Earth... despite a neutron star being no larger than a city, it is actually Solar System level due to how high its GBE is from its immense gravity.

Simply put:
More mass + smaller object = higher gravity.
This means that the denser the object, the stronger its gravitational pull is.

 

[Bossbrosish]

I see

 

[Furudo_Erika]

Though, with 10x gravity, it would be 3.691e39 joules (Dwarf Star level)
In the middle of both, 12.5x gravity, it is 5.769e39 joules (Dwarf Star level+)
While with 15x gravity, it is 8.308e39 joules (Small Star level)

But, exactly what kind of dwarf star are we talking about here?
A red dwarf, white dwarf, etc.?
As white dwarf stars are much closer to Large Star level than Dwarf Star level, despite only being around Earth-sized.

 

[Bossbrosish]

Brown dwarf Star

 

[Furudo_Erika]

Brown dwarf stars are around 75x larger than Jupiter, and has a mass around 13 to 80 Jupiter-masses.
So, far larger than 5x Jupiter's size.

 

[Furudo_Erika]

My bad, I misread that

 

[Furudo_Erika]

On average brown dwarfs have 75x more mass than Jupiter, and having a radius of 0.7 to 1.4 Jupiter-radii.
So, not much larger than Jupiter, and they can even be smaller in fact.

 

[Bossbrosish]

I see

 

[Furudo_Erika]

However, even brown dwarfs are separated into different categories.
Such as M-Class, L-Class T-Class, and Y-Class brown dwarf stars.
Though, red dwarves are also called M-Class stars too, but L-Class, T-Class, and Y-Class are brown dwarves.
Which they can be significantly different from each other.

 

[Furudo_Erika]

Though, it would sound more like a Y-Class brown dwarf.
Since they have a surface gravity of around 12 G.
It isn't a L-Class brown dwarf for sure though, which are around 300x gravity.

 

[Bossbrosish]

yeah, a Y-Class brown dwarf star would be best for the Demon Realm

 

[Furudo_Erika]

Though Y-Class brown dwarves are very light stars, only having 5 to 13 times the mass of Jupiter.
Sharing around the same radius as well.

 

[Bossbrosish]

I see

 

[Furudo_Erika]

Low-End (5x mass): 5.048e+27 joules (Large Planet level+)
Mid-End (9x mass): 1.636e+38 joules (Dwarf Star level)
High-End (13x mass): 3.412e+38 joules (Dwarf Star level)

So, both mid and high ends are High 5-A...however, this is assuming they are the same size of Jupiter, which I'm sure the Demon Realm is quite larger than Jupiter.

 

[Bossbrosish]

The demon realm is larger than Jupiter but since I'm the author, I could just change that

 

[Furudo_Erika]

So, just how large is the demon realm?
As well as the surface gravity of it, which is 10 to 15x gravity?

 

[Furudo_Erika]

Also gravity for the Y-Class star:
Low-End (5x mass): 12.64x gravity
Mid-End (9x mass): 22.76x gravity
High-End (13x mass): 32.87x gravity

 

[Bossbrosish]

The Demon Realm is 5 times larger than Jupiter as for the surface gravity, might as well go with 10 times but I'm not sure if that would work with the size

 

[Furudo_Erika]

Well, time to reverse-operate radius and gravity to get mass.

 

[Furudo_Erika]

Demon Realm:
Mass: 1.795e29 kg
GBE: 3.691e39 joules (Dwarf Star level)

 

[Bossbrosish]

Yep, that works, thanks, and do you mind If I ask how you did the reverse-operate mass from radius and gravity?

 

[Furudo_Erika]

Using this calculator. Make sure you calculate mass, then just put in the radius of the planet, and the gravitational acceleration of the planet.
For gravitational acceleration, you can just type in "10 g" to calculate with 10x gravity.

You type in the units yourself, so "m" is meters, "km" is kilometers, "mi" is miles, and "kg" is kilograms, etc.

 

[Bossbrosish]

Thanks, also the AP is 3.691e39 joules based on the GBE correct?

 

[Furudo_Erika]

Yes

 

[Bossbrosish]

ok

 

[Bossbrosish]

Not sure if you're interested but I Revaluated The Devil King AP using the numbers you gave me: https://fcoc-vs-battles.fandom.com/wiki/User_blog:Bossbrosish/The_Devil_King_AP_Revaluated