Diffraction Resolution
Loading author...
Angular resolution
1.38 arcsec
6.71 μrad Rayleigh angle
Separation at 500 km
3.36 m
Airy disk diameter
6.71 m
Aperture / wavelength
181,818 λ
Rayleigh criterion at the target plane
3.36 m separation
Either point image is centered on the other's first dark ring.
Open Source and Easy to Use Elsewhere
This tool is open source and the underlying logic is fully transparent. You can inspect the code, understand the calculations, and contribute improvements. If you want to use the tool in your own website, course page, or learning platform, you can also embed it directly and start from a ready-made iframe setup for this exact tool.
Open source: review the implementation and see how the results are produced.
Embeddable: preview this tool, copy the iframe, and use it in your own site or LMS.