Generate ONE new standalone website companion background. Aspect ratio 9:16; tall PORTRAIT, height much greater than width. The supplied image is a STYLE REFERENCE, not an image to copy or crop. Maintain its medium, material realism, art direction, visual family and quality. Theme: A cinematic telescopic view of one immense dark planet entering from the right edge, only a thin dusty-copper sunlit crescent and a very fine pale blue atmospheric rim visible. Its shadow hemisphere almost merges with the pitch-black universe. Vast black negative space left, exceptionally sparse tiny stars, delicate believable astronomical surface detail on crescent. Restrained scientific photographic realism, not a rainbow nebula, not a sci-fi game, no spacecraft, no rings, no typography. VARIATION INSTRUCTIONS (take precedence over original theme positioning or palette): Create a TALL PORTRAIT image composed specifically for mobile: main visual concentrated in bottom 45%, upper 50% quiet space. Preserve the medium and palette. New composition, not a center crop. This must be a distinct generated composition. No words, letters, numbers, interface, watermark, border or collage. Highest native detail. Intended use: Mobile hero.