The Rayleigh Criterion ·
Angular Resolution
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.com · θ = 1.22 λ/D · Airy disks · diffraction limit
Separation
wide
θ = 1.22 λ/
D
Stage
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Star A (point source)
Star B (point source)
Circular aperture (D)
Resolved / merged image
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.com · The Rayleigh Criterion