Dimensional Key Hovering in Deep Space - Photorealistic

Photorealistic, ultra-detailed depiction of a dimensional key floating in deep space. The key is a large ornate artifact with a polished metallic shaft and an intricate bow formed by interlocking rings. The bow is inlaid with faint glowing runes, and a pale blue-green energy core pulses at the center. The key hovers above a distant, colorful nebula, with wisps of gas, a starfield, and a subtle silhouette of a planet or space station in the background. Realistic light from a nearby star casts crisp highlights and reflections on the metal, with subtle lens flares. Gravitational warp ripples surround the key, as if it is the doorway between dimensions. Include fine space-dust particles and a soft halo around the artifact to emphasize its otherworldly power.