SkyQI vs Scan the Sky

SkyQI turns your smartphone into a sky quality meter. Upload a photo of the night sky and our algorithm instantly analyzes it — detecting stars, measuring artificial light contamination, and calculating your sky's Bortle class and SQM value. FEATURES • Instant Analysis — Upload a night sky photo and get your Bortle scale (1-9) and SQM reading in seconds • Light Pollution Map — Explore an interactive map with NASA VIIRS satellite data overlay showing light pollution across India • Sky Conditions Forecast — Check cloud cover, seeing, and transparency before heading out to stargaze • Photo Gallery — Browse night sky photos from citizen scientists across the country • Learn — Read articles about light pollution, dark sky destinations, astrophotography tips, and more • Track Progress — View your measurement history and personal statistics WHO IS IT FOR? • Amateur astronomers planning observation sessions • Students and teachers doing citizen science projects • Anyone curious about the quality of their night sky • Environmental advocates tracking light pollution trends SkyQI is a citizen science project started by Suhani Gupta in Gurgaon. Every measurement you upload contributes to building India's most detailed light pollution database. Free to use. No account required to upload.

Scan the Sky is your ultimate live cosmic tracking and orbital discovery tool. Whether you are a casual stargazer or an avid astronomer, our real-time atmospheric and celestial data ensures you never miss a moment under the stars. Key Features: -Light Pollution Scouting Map: Tap anywhere on our interactive map to calculate regional skyglow degradation. Find the perfect Class 1 pristine dark sky site with our Bortle scale indicator. -Meteor Shower Index: Get real-time radiant tracking and peak activity alerts for major cosmic streams, from the Perseids to the Geminids. -ISS Live Tracking: Our orbital matrix tells you exactly when the International Space Station is flying overhead, including altitude, speed, and visibility flags. -Seasonal Constellation Guide: Beautiful vector mapping and historical lore for constellations tailored exactly to your GPS coordinates and the current season. -Space Weather Matrix: Live NOAA data streams alert you to active solar storms and geomagnetic Kp-index spikes so you can chase the aurora. -Live Cloud Cover & Lunar Projections: Open-Meteo forecasts combined with exact moon phase calculations ensure you only head out when the canopy is crystal clear.