Скачать или смотреть Dramatic glowing Clouds at sunset in Chicago to 1913 Wagner's Treulich geführt (Bridal March) 12/29

Look for the irisatation, Crepuscular Rays ("God Rays") and the moon over the Admiral.

Normal speed audio 4x video previously posted
. Google's Gemini AI Pro explained this about these clouds today,

It’s a beautiful evening! Based on the video, you’ve captured a dynamic mix of Stratocumulus and Altocumulus clouds.
​At the start, you can see those low-hanging, gray-to-white patches typical of Stratocumulus. As the sun begins to set, the light hits the higher layers of Altocumulus, creating those stunning pink and orange "cotton-ball" textures. Because these clouds are moving fairly quickly and breaking apart, they make for an excellent time-lapse subject.

In this still, you've captured a fascinating moment where several atmospheric phenomena are happening at once. The bright, concentrated light appearing to "break through" or sit within the darker clouds is a classic display of sunset optics.
1. Cloud Iridescence (Irisation)
The small, intensely bright patch of light situated in the middle of the dark cloud mass is likely cloud iridescence.
How it forms: This occurs when sunlight hits very small, uniform water droplets or ice crystals in thin, semi-transparent clouds (like the Altocumulus you captured).
The Effect: Instead of the light just passing through, it is diffracted—obstructed and bent by the particles—causing it to spread into spectral colors. While it often looks like a rainbow, it typically appears as a brilliant, pearly-white or pastel-colored glow near the sun.
2. Crepuscular Rays ("God Rays")
The streaks of light and shadow radiating across the sky are called crepuscular rays.
The Cause: These rays originate when the Sun is just above or below a layer of clouds during twilight. Clouds or other objects partially shadow the sun's rays, creating alternating bands of light and dark.
Perspective: Though the rays are actually parallel, they appear to diverge or radiate outward because of perspective, much like railroad tracks appearing to converge in the distance.
Coloration: These rays often appear orange or yellow because the sunlight is traveling through a much thicker part of the atmosphere, which scatters away the shorter blue wavelengths and leaves the warmer red and orange tones.
3. Layered Lighting
You can see a clear contrast between different cloud layers.

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Underlighting: The lower, darker clouds are not being directly lit by the sun, while the higher clouds are catching the final rays from below the horizon.
High Altocumulus: These mid-level clouds (around 50% coverage) are ideal for catching sunset light because their height allows them to intercept "unadulterated" sunlight that hasn't been blocked by the thickest layers of the lower atmosphere.
Would you like me to help you time your music to one of these specific "light break" moments in your time-lapse?