Physics · Kerr spacetime
Spin a/M
0 · Schwarzschild
0.5
0.9
0.98
Emission
Bolometric · thermal color
Visible light
Relativistic color & brightness
Light-travel delays
10⁸ solar masses · time accelerated 1000×
Opaque, zero-thickness Novikov–Thorne disk · procedural gas texture
Kerr ·
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