Calc for shaking a moon or star?

As the title implies, is there like a calc for feats that shakes up a moon or even a star?

I've seen one general calc for shaking the entire earth(?) that gives out anywhere from Low 6-B to up to High 6-A seen here, which makes it a Tier 6 feat either way however that's done. And I've also heard/seen that shaking the universe is 4-A. I've even seen one of Accelerator's where his recent feat (note: never read ToAru but have considered it for a long time...just slow to do it) has him shake/shook the galaxy and almost all the calc'd results linked to it rounded up in the 4-B range.

Yet I don't seem to see one for shaking something like a moon or star around? Unless there is one laying around that I like to see of it? Not asking for anything or a request, just more if there is one that's general-ish for any verse that has done either one of these. IDK for moon shaking feats but I have seen/heard of Mondaiji-tachi ga Isekai kara Kuru Sou Desu yo? doing this quite a bit or a few times before...though controversy aside I can't remember as it's been a long time since it was last brought up.

Bump

I've asked DMUA, a Calc Group member, in private and he seems unaware about the method to calculate the shaking of a moon or a star.

Well, I don't really know how to calculate the shaking of non-Earth-esque celestial bodies as they are composed of different materials, who make the usual methods of shaking's energy measurement unreliable.

Really? That sucks. It'd be good if it were possible for any verse in general that performs these feats lioe that of shaking the earth or the universe.

Maybe you should ask DontTalkDT? He's the most experienced when it comes to physics.

I'll try and do that, yeah. Thanks for the answer at least.

If using the earthquake method to calculate shaking stars/moons is inaccurate, why was the calc of shaking the Universe accepted?

https://en.wikipedia.org/wiki/Peak_ground_acceleration#Correlation_with_the_Mercalli_scale

Magnitude lower end 2's velocity value listed on wikipedia is .001 m/s is for the velocity the ground moves for it to be perceptible to us humans.

Basically using that for the presumed velocity in this sort of feat and plugging that into the kinetic energy formula as a low end.

Using inverse square law here depends on if the feat in question is from an omnidirectional shockwave, if it isn't then here's what ya get for both, Darth Sidious has a feat like this, though I guess he was affecting red dwarf stars. Superman apparently shook our real life solar system or someshiz.

Low end for sun/star shaking:

Mass of the sun: 1.989E30 kg

Kinetic energy = 1.989E30*.5*(.001^2) = 9.945E23 joules or High 6-B

"High end" method for sun/star shaking:

Surface area of a circle = (pi)*(r^2)

Surface area of a sphere =4*(pi)*(r^2)

Distance to the sun from Earth: 149,597,870,000 meters

Surface area of the area getting affected: 4*(pi)*(149,597,870,000^2) = 2.8122938E23 m^2

Sun radius: 696,000,000 meters

Cross sectional surface area of our Sun = (pi)*( 696,000,000^2) = 1.5218377E18 m^2

Energy that would spread out from the center via inverse square law for this sorta feat: (2.8122938E23 / 1.5218377E18) * 9.945E23 = 1.8377953E29 joules or 5-C

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Low end for moon shaking:

Mass of moon in kg: 7.34767309E22 kg

Kinetic energy = 7.34767309E22*.5*(.001^2) = 3.6738365E16 joules or High 7-B

"High end" method for moon shaking:

Surface area of a circle = (pi)*(r^2)

Surface area of a sphere =4*(pi)*(r^2)

Distance to the Moon from Earth: 384,400,000 meters

Surface area of the area getting affected: 4*(pi)*(384,400,000^2) = 1.8568491E18 m^2

Moon radius: 1,737,500 meters

Cross sectional surface area of our moon = (pi)*(1,737,500^2) = 9.4841737E12 m^2

Energy that would spread out from the center via inverse square law for this sorta feat: (1.8568491E18 / 9.4841737E12) * 3.6738365E16 = 7.1927826E21 joules or Low 6-B

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Basically if you shook Proxima Centauri from Earth you'd donk up Earth if it was from an omnidirectional shockwave.

Here's what that'd yield if you did this feat in a setting in fiction from on Earth:

Max radius of Proxima Centauri is: 6.957E8*(0.1542+0.0045) = 110,407,590 meters

Lowest mass of Proxima Centauri is: 2E30*(0.1221-0.0022) = 2.398E29 kg

Low end: 2.398E29*.5*(.001^2) = 1.199E23 joules or like 6-B

High end:

Distance to the star from Earth:

4.243 light years or 4.01419E16 meters

Surface area of the area getting affected: 4*(pi)*(4.01419E16^2) = 2.0249099E34 m^2

Cross sectional surface area of the star = (pi)*(110,407,590^2) = 3.8295499E16 m^2

Energy that would spread out from the center via inverse square law for this sorta feat: (2.0249099E34 /3.8295499E16) * 1.199E23 = 6.3398233E40 joules or Low 4-C

Essentially, inverse square law makes this shiz really fricking impressive once you get to cosmic distances if this law applies due to the energy dispersing.

If not, then fiction be dumb with conservation of energy and area of effect and the low end would apply regardless.

Shaking the universe even going by that velocity is also a silly feat we can estimate without using inverse square law of someone moving shiz on the edge of the universe. If we did take into account inverse square law, moving one of the stars on the edge of our observable universe easily reaches inane levels of energy beyond 3-B. But let's just get an idea since fiction don't care about conservation of energy and area of effect combining.

Mass of the normal visible matter in our universe is 4.5e51 kg

Kinetic energy = 4.5E51*.5*(.001^2) = 2.25E45 joules or High 4-C

and yeah, the objective velocity being used is for humans observing / feeling the ground lightly shaking and being able to have visible movement at that distance from the ground with us standing on top of a quake. And ground velocities for us to consider a quake to be a strong quake are 0.081 m/s, almost ten times faster. And in fiction such feats are usually not gonna be a light vibrating.

Hmmn interesting. Feel free to make a blog post about it

Huh...funny that it came to this when I really made this to find a general calc for moon/sun shaking feats ^^;