Northern Lights Aurora Tracker

The Aurora Collective

Contains adsIn-app purchases

About this app

Know when to look up. Aurora Tracker brings the space weather data aurora hunters rely on into one app, and turns it into a simple answer: is it worth going out tonight?

TONIGHT AT YOUR LOCATION
• Should I Go? A clear call for tonight that weighs aurora activity, cloud cover and darkness together
• Aurora viewing score and the best viewing time for where you are
• Hourly cloud cover forecast, local temperature, moon phase, sunrise and sunset
• Works with approximate location, or search for any place you plan to visit

ALERTS THAT REACH YOU
• Geomagnetic storm alerts on NOAA's G1 to G5 scale, from the level you choose
• Solar flare alerts for C, M and X-class flares
• Alerts for Earth-directed coronal mass ejections (CMEs)
• Viewing window reminders, so you're outside at the right time
• Set sound, vibration and pop-ups separately for each alert type

LIVE AURORA AND SPACE WEATHER DATA
• Kp index now, plus NOAA's 3-day Kp forecast
• Aurora forecast map (NOAA OVATION) and the aurora viewline forecast
• Solar wind speed, density, Bz and Bt
• Hemispheric power, Dst index and magnetometer readings
• GOES X-ray flares and proton flux, ACE EPAM particle data
• CME arrival forecasts from the WSA-ENLIL and HUXt models
• Sunspots and active regions
• Solar imagery and time-lapse videos from NASA's Solar Dynamics Observatory

HUNT LOG
• Record every aurora hunt with photos, notes and the conditions at that moment
• Attach the WSA-ENLIL solar wind animation to an entry
• Add photos from your gallery, camera or files, including camera RAW
• Export and import your whole log as a ZIP backup

LEARN AS YOU GO
Built-in guides explain every chart in plain language: Kp, Bz, solar wind, CMEs, solar flares, cloud cover and more, plus field tips for your next aurora chase.

AURORA TRACKER PRO
A one-time purchase that removes banner ads and unlocks Should I Go?, the viewing score, best viewing time, hourly cloud cover, local weather, moon phase, sunrise and sunset times, the satellite map, local time zone across all charts, your coordinates and magnetic latitude, and the Hunt Log. Not ready to upgrade? Watch a short ad to unlock the night tools for a limited time.

Available in English, Deutsch, Suomi, Norsk, Svenska and Русский.

Space weather data comes from NOAA's Space Weather Prediction Center, NASA and other public sources. Aurora Tracker is an independent app and is not affiliated with NOAA or NASA. Aurora forecasts are probabilities, not promises: clear skies and patience still matter.