The Observatory turns GitHub into an astronomical instrument. Tonight's fastest-rising repos become the brightest stars. Repos that suddenly explode get real supernova designations (SN 2026-07-14A) with Δ-magnitudes calculated the way astronomers do it. Point the telescope at any month back to 2008, get a stellar classification for any repo (Protostar → Hypergiant), or see your own GitHub account drawn as a constellation. 100% client-side, $0 to run, no signup, no tracking.