Zorja checks darkness, clouds and aurora above you, and tells you whether to go out, wait or skip.
Free. No account, no ads, no tracking.
Strong aurora behind thick cloud is nothing to see. Zorja weighs all three for the place you stand, and gives one plain answer.
When it gets dark, when the sky clears and when aurora is on. Slide along the arc to see any hour of the night.
Aurora itself can only be known about 90 minutes ahead. Clear, dark hours can be planned, so Zorja finds the best night and adds it to your calendar.
Screens of the Zorja app: Now says "Go Out Right Now." in Tromsø, Tonight shows the night as an arc from sunset to sunrise, and 3 Nights tags the best of the next three nights.
Your browser shares your location once. Only a rough area is sent, rounded to about a kilometre, like in the app.
Guidance, not a promise. Zorja’s assessment is experimental, and it can’t see local haze or streetlights.
Then look north. Zorja tells you when it’s worth going out. The sky does the rest.
