lustar vs Astrosee

The two biggest factors keeping you from finding that perfect star gazing location are light pollution and weather. Using local weather forecasts and light pollution data, Lustar gives you a searchable map of the world with hourly stargazing forecasts for every location. Check out the Dark Site locations if you're not sure where to start.

Astrosee helps amateur astronomers decide when to observe. Instead of opening several weather, moon, and sky tools, Astrosee gives you a clear seeing score for tonight and explains what is driving it: clouds, transparency, wind, darkness, moon phase, humidity, and the best observing window. Highlights: • Real-time observing score for your location • Tonight window with darkness, moon impact, and practical guidance • 7-day astronomy weather planner • Moon phase and illumination context for deep-sky observing • Weather breakdown: clouds, wind, humidity, temperature, and pressure • Sky targets with visibility guidance • Meteor showers, ISS passes, satellites, and notable sky events • Observation log for quick session notes • Home Screen widget for quick conditions Astrosee is built for practical telescope decisions: when to set up, what to expect, and what is worth trying tonight. Privacy-first: no account, no advertising, no analytics backend, and no cross-app tracking.