How this site decides what's worth it

Every phenomenon gets a score built the same way: how good is the thing itself (a satellite pass nearly overhead beats one that skims the horizon; a meteor shower at peak beats its tail), multiplied by tonight's conditions at your exact location: cloud cover during that event's window, moonlight if the target is faint, and whether the sky is actually dark. The scores map to four honest tiers: skip, long shot, good, don't miss. If nothing clears the bar, the site says so. That honesty is the product.

Where the data comes from

Satellite orbits from CelesTrak (updated several times a day), space weather and aurora forecasts from NOAA's Space Weather Prediction Center (updated every few minutes), cloud and temperature forecasts from Open-Meteo (CC BY 4.0), rocket launches from The Space Devs' Launch Library, and the astronomy itself (planet positions, moonlight, twilight, eclipses, conjunctions) is computed in your browser with the open-source Astronomy Engine and satellite.js. City index from GeoNames. Nothing about you is stored on any server: your location lives in your browser.

Who makes it

Built by InSyde Digital in Australia, which is why the southern sky gets equal billing. Questions or corrections: rhys@insydemedia.com.au.