AuroraPulse vs Astraflare

Will you see the northern lights tonight? AuroraPulse answers with one number: your chance, from where you are, right now. YOUR CHANCE, NOT JUST A KP AuroraPulse combines the planetary Kp index with your geomagnetic latitude, the cloud above you and how dark the sky is. A high Kp means little under an overcast sky or at noon, and the app says so. LIVE AURORA MAP See the auroral oval from NOAA's OVATION model on a real map, where you stand in relation to it, and which way to look. FORECAST • 3-day Kp forecast with the windows when aurora could reach you • 27-day outlook for planning a trip • Compare a destination: what Kp it needs and the cloud forecast ALERTS THAT RESPECT YOU • One evening notice when aurora is forecast for your location • Optional alert 30 minutes before the peak • Geomagnetic storm and Earth-directed CME alerts, filtered to what can be seen at your latitude SPACE WEATHER, EXPLAINED Solar wind speed, Bz, X-ray flares, sunspot number and active NOAA storm bulletins, with a guide that explains what each number means. WIDGETS AND LIVE ACTIVITY Home Screen and Lock Screen widgets, a Live Activity when aurora is possible, and Siri: "What's the aurora forecast in AuroraPulse?" COMMUNITY SIGHTINGS See recent reports near you and add your own. A sighting shares an approximate location (about 10 km), never your exact position. PRIVATE BY DESIGN No ads, no tracking, no sign-up. Your location is used on your device; weather requests use it rounded to about 1 km. Data: NOAA Space Weather Prediction Center, NASA DONKI, Open-Meteo.

Astraflare turns live space-weather data into a plain answer to one question: what's worth looking up for tonight? It fuses real-time feeds from NOAA SWPC, NASA DONKI, NASA Helioviewer, USNO, CelesTrak, the Minor Planet Center and Open-Meteo with on-device astronomy — so aurora odds, clear-sky windows, solar flares, eclipse paths, satellite passes and conjunction alerts all live in one clean app. Built for aurora chasers, astrophotographers and casual sky-watchers. AURORA • Live Kp index and 3-day forecast • OVATION aurora-oval map with cloud-cover overlay • Tonight's-window card: a plain-English verdict combining twilight, Kp, moon, clouds and latitude • Bortle light-pollution hint for your spot • Photography assistant with camera recipes (ISO, shutter, aperture) tuned to conditions and a "leave by" countdown SOLAR • Live SDO imagery (AIA 171, AIA 304, HMI) and SOHO LASCO C2/C3 coronagraphs • X-ray flux chart, flare probability, recent-flares log • Solar wind — speed, density, Bz — on 12 h / 24 h / 7 d ranges • Sunspot number, F10.7, Solar Cycle 25 progress • Coronal-hole tracker and high-speed-stream events • CME tracking with a 3-D propagation orrery • NOAA R / S / G space-weather scales at a glance SKY • Moon phase, illumination, rise / set / transit • Civil, nautical and astronomical twilight windows • Planets tonight — rise / set, altitude, magnitude • Comets tonight from Minor Planet Center orbital elements • Visible satellite passes (ISS, Starlink and more) — computed on-device via SGP4, no server round-trip EVENTS • Solar and lunar eclipses through 2100 with local circumstances and path rendering • Meteor-shower calendar from IMO data — peak dates, ZHR, radiant altitude • Planetary conjunctions and planet parades • 30-day geomagnetic-storm history ALERTS • Live SWPC bulletins categorised by type (geomagnetic, flare, radiation, radio blackout) • Configurable push notifications — Kp threshold, minimum flare class, conjunction separation angle, planet-parade size, eclipses visible from your location • Background polling plus server-side push so you don't miss a short-notice event THE LITTLE THINGS • Share Tonight — one-tap 1080 × 1350 portrait card of your best sky event • Every on-screen term has an info button linking to a built-in glossary — nothing stays jargon • UTC or local time, your choice • iPhone-only, cached data works offline, no account required Astraflare is made independently by Eldwyn Labs. We are not affiliated with NASA, NOAA or USNO; we gratefully rely on their public data.