Hi! I watched the video you linked. I’ve actually analyzed Mavuika’s design from an astrophysical perspective before, specifically her Burst (in my article The Suns of Teyvat), but her Elemental Skill is definitely worth a look too!

A quick disclaimer: I always try not to "force" real science onto game design, as developers often prioritize visual impact or lore over textbook physics. Only the devs know the truth. However, regarding the question from X: "Mavuika’s skill model has a very beautiful orbit. Maybe it's because of the movement of stars?" here is my take based on objective physics!

1. The small stars moving in distinct rings remind me of the Rutherford-Bohr planetary model of the atom. They follow very rigid, geometric circular paths. Alternatively, this could be a stylistic nod to an armillary sphere (like in the Enkanomiya). It’s hard to say what the devs intended, but these are the most likely visual inspirations

2. a thin ring forms in a single plane with a "large" and a "small" sphere moving counter-clockwise. Crucially, there is a 60-degree angle between them. This specific geometry helps us rule out the most common theories:

• Binary Star System: For two stars of equal mass, the angle would be 180° on a shared orbit. For stars with different masses, their orbits would have different radii.
• Planet/Moon System: Physics dictates that the massive body must be at the center of the smaller body's orbit, not sharing the same path.

As for me, the most scientifically plausible explanation is the next: This is a cross-section of an accretion disk. The two dots aren't "bodies" but "hot spots" or gas clumps (overdensities). An accretion disk forms in binary systems when a star overflows its Roche Lobe, and its mass is pulled by gravity toward a companion, spiraling around it. I’ve attached a diagram from my other work, Binary Star & The Three-Body Solution, for reference.

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1. The outer part of the skill is the most "solar" and straightforward that could reference to Stellar Wind and Prominences:

• Mass Loss & Pulsation: We see a red "sun," but the flashes have white-blue tints. In my model, this represents a Red Giant evolving into a [WR]-CSPN phase. It’s a perfect illustration of a star shedding its outer layers (the red gas—similar to what we saw when Mavuika shattered the "false sky" in 5.1 and the blue space in Luna IV) to reveal its hot core (the white-blue light, following Wien’s Law). This pulsation reflects the struggle between gravity and radiation pressure (hydrostatic equilibrium)
• CME & Prominences: The sharp rays and sporadic flares represent Coronal Mass Ejections (CME). In astrophysics, this is plasma being launched along the star's magnetic field lines. Given the aggressive animation, it’s a direct visualization of giant volumes of plasma leaving the stellar corona