Supermassive Black Hole Museum Exhibit Board

An expert astronomer's museum-grade presentation board for [Sagittarius A*], a supermassive black hole. Layout split into three sections across a clean grid with subtle borders: Left section features black-and-white 2D scientific diagrams (cross-section, orbital paths, spectral analysis) with precise annotations, scale bars, and technical labels. Center section displays an exploded axonometric layered diagram revealing the singularity core, plasma torus, and spacetime curvature layers. Right section shows a photorealistic 3D render of the black hole in the galactic center with swirling stars, gravitationally lensed distorted light, vibrant orange and electric blue plasma accretion glow, and stellar debris trails. Visual style transitions smoothly from archival blueprint graphite schematics on the left to deep space atmospheric darkness on the right. Cinematic lighting, NASA exhibition quality. Title block along the bottom reads: "[SAGITTARIUS A* — COSMIC ABYSS — 4 MILLION SOLAR MASSES]".