Calibrated RAW Night-Sky Radiometer (SQM mag/arcsec² & True Bortle Meter)

Deterministic In-frame Tycho-2/Gaia G-band aperture photometry zero-point self-calibration + sigma-clipped background ADU/arcsec² surface brightness engine (.dng, .arw, .cr3, .nef) built for Unihedron SQM, Sony Alpha, Canon EOS, International Dark-Sky — zero-upload ephemeral Wasm RAM execution.

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Cloudflare Ephemeral Wasm RAM · 0% Retention

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