DarkSkyFind
A stargazer's companion app that points you to the nearest dark-sky site, gives a real-time satellite-streak forecast for tonight, and overlays upcoming 'mega-constellation passes' so you know not to bother with astrophotography during a Starlink train.
Amateur astronomers, astrophotographers, and weekend campers who want the best dark sky tonight
- Light-pollution map of nearby dark-sky sites (Bortle 1–3) with drive-time and weather forecast
- Live satellite pass overlay — tonight's Starlink, E-Space, and Reflect Orbital train predictions so you know the worst windows
- One-tap 'best 3-hour window' recommendation that combines moon phase, satellite density and cloud cover
- Photo-submission log to a citizen-science archive that tracks streak counts over time
ESO just published the first peer-reviewed finding that 1.7M proposed satellites cross the 'beyond the limit' threshold — amateur astronomers will feel this within months and need tools that adapt their observing plans to a much busier sky.
Multiple authoritative roundups (BBC Sky at Night, AstroBackyard, Hipcamp) actively curate stargazing apps, and dedicated light-pollution apps with millions of light-pollution-aware users show a real, engaged audience.14 best astronomy and stargazing apps for smartphones - BBC Sky at Night ↗The 20 Best Astronomy Apps in 2026 | Night Sky & Stargazing ↗
Core features are already fragmented across incumbents: Light Pollution Map (dark-site + 100+ tools), Heavens-Above / Orbital Radar / SpaceSight24 (Starlink & ISS passes), Stellarium/PhotoPills (planning) — no single app uniquely owns the combo.Light Pollution Map - Dark Sky - Apps on Google Play ↗SpaceSight24 ISS & Starlink - Apps on Google Play ↗Starlink Tracker — Live Satellite Map, Train Finder & Visible Passes ↗
Astrophotographers demonstrably pay $10–$25 for serious tools (PhotoPills, Stellarium Plus, SkySafari Plus), but Heavens-Above and LightPollutionMap.info remain free, capping realistic ARPU.The 20 Best Astronomy Apps in 2026 | Night Sky & Stargazing ↗Light Pollution Map ↗
Mega-constellation buildout (Starlink now 10,709+ tracked satellites per Orbital Radar, plus Kuiper/OneWeb) plus growing dark-sky tourism trend means the problem DarkSkyFind solves will worsen for years.Starlink Tracker — Live Satellite Map, Train Finder & Visible Passes ↗The Best Stargazing Apps for Your Next Dark Sky Camping Trip ↗
All required data feeds already exist publicly: NASA Black Marble VIIRS light pollution, CelesTrak/N2YO TLEs for satellite passes, and standard weather/cloud APIs — integration is the main cost, not data acquisition.Light Pollution Map - Dark Sky - Apps on Google Play ↗Heavens-Above Starlink passes ↗