Ancienne mégastructure orbitale avec noyau d’énergie lumineux dans l’espace

A colossal ancient futuristic orbital megastructure floating in deep space, enormous bronze mechanical ring portal occupying the central frame, intricate inner gears and industrial architecture, giant glowing amber energy sphere suspended in the center, cinematic diagonal truss bridge crossing from lower-left foreground toward right-middle frame through the sphere, low-angle camera looking upward 25 degrees, slight camera roll 8 degrees, ultra wide 24mm lens perspective. Massive gas giant planet positioned in the upper-left quadrant, partially silhouetted against an immense golden-white stellar light source. Swirling cosmic nebula clouds wrapping behind the ring structure, dense interstellar dust, scattered asteroids drifting across the upper space. Powerful stellar explosion glow emerging from the right side of frame, intense volumetric god rays cutting through the portal and sphere. Brushed bronze alloy materials, dark copper shadows, warm solar gold highlights, amber energy core, cinematic HDR exposure, realistic light scattering, raytraced reflections, atmospheric depth, volumetric fog, floating particles, bloom diffusion, epic scale, Interstellar movie aesthetic, Dune-inspired color palette, NASA concept art realism, Unreal Engine 5, Octane Render, global illumination, hyperrealistic, ultra detailed, masterpiece, 8k, sharp focus, extreme depth perception, vertical composition. Composition accuracy: planet at upper-left 35% frame, ring centered at 46% x 58%, energy sphere centered at 50% x 57%, bridge crossing diagonally from bottom-left to middle-right, bright stellar source at right-middle edge, planet behind ring structure, nebula behind planet, foreground metal frame at bottom edge. Negative prompt: people, astronauts, spacecraft interior, text, logo, watermark, anime, cartoon, colorful neon, blue lighting, cyberpunk colors, extra planets, duplicate rings, low detail, blurry, flat lighting, low contrast, oversaturated colors, unrealistic geometry