This is an interactive astrophotography planning tool that combines astronomical geometry, weather forecasts, and equipment-specific parameters into a single evaluation model.

It goes beyond simple object visibility and highlights genuinely effective imaging windows by accounting for target altitude, Moon impact, seeing, atmospheric transparency, and local conditions. The result is a clear, time-based view of night quality that helps decide whether a session is worth the effort and which targets justify the available imaging time.

Read the full article to see how the “night quality” score is built and interpreted here.