Solar Disk Photo to Stonyhurst/Carrington Coordinates & Earth-Scale Sunspot Area

Deterministic Limb-darkened Eddington solar disk circle fit + JPL/Jean Meeus solar ephemeris (P, B0, L0) orthographic sphere de-foreshortening sec(ρ) engine (.jpg, .tiff, .fits, .png) built for Lunt Solar, Baader AstroSolar, DayStar Quark, Player One — zero-upload ephemeral Wasm RAM execution.

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Cloudflare Ephemeral Wasm RAM · 0% Retention

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Double-click 2.4× zoom · Drag to pan / 3D orbit

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