This SVG example demonstrates a simplified animated solar system, showing nine planets orbiting a glowing central sun on a black background. Each planet moves along its own elliptical path defined by an SVG `<path>` element, with its motion driven by the `animateMotion` and `mpath` APIs. The sun uses a `radialGradient` fill and a `filter` with `feGaussianBlur` to create a pulsing glow effect. The rendering is achieved entirely through raw SVG elements and CSS styling.