unseel.com
Fried Parameter · r₀ — atmospheric coherence length
unseel.com · turbulence · wavefronts · adaptive optics
r₀ (λ=500nm) 15 cm
Seeing 0.7″
Stage
Starlight wavefront
Turbulence cells (~r₀)
Telescope aperture / patches
AO-corrected star image
Unseel.com · The Fried Parameter (r₀)