BLACK HOLE LENSING
Black Hole Mass (M):
1.0
Impact Parameter b:
auto
Star Field Density:
medium
Show photon orbits
Show accretion disk
Show Einstein ring
Photon sphere: r = 3M
Schwarzschild radius: rs = 2M
Einstein ring: θ_E = √(4GM/c²·D)
Critical impact: b_c = 3√3·M