galaxy nebula space background purple blue stars
Prompt
A photorealistic deep-space background showing a vast glowing nebula suspended in a dark star field, with an irregular oval cloud structure and luminous wisps curling around a brighter central core. Use rich purple, electric blue, magenta, smoky rose, and faint amber tones blending naturally through translucent cosmic dust. Tiny stars of varied brightness scatter across the frame, with a few subtle diffraction glints near the center. Composition is centered and expansive, designed as a seamless abstract astronomy texture with strong depth against near-black space. Soft ethereal glow, high detail in gas filaments, natural contrast, shot as long-exposure telescope astrophotography, ultra-deep focus, clean realistic rendering.
Negative Prompt
people, faces, logos, watermarks, readable text, spacecraft, planets, famous landmarks, black mosaic borders, pixelated edges, artificial HDR halos, oversaturated neon colors, cartoon style, low resolution, blurry gas detail, banding, compression artifacts