Menu-bar stargazing forecast for Mac

See at a glance whether tonight is good for stargazing

Problem

A developer built a Mac menu-bar app that tells you when tonight is clear, showing that amateur astronomers want a timely nudge rather than opening weather sites to check cloud cover, moonlight, and light pollution every time. It is a low-frequency but timing-sensitive need.

Solution

A Mac menu-bar app that combines cloud cover, precipitation chance, moon phase, and astronomical twilight into one recommendation of the best viewing window tonight, with an optional notification when conditions improve.

Users

Amateur astronomers, astrophotographers, and parents who want to take kids stargazing.

MVP

One free weather plus moon-phase API; menu-bar display of tonight's recommended viewing window; click to expand hourly cloud cover and moon phase; local notification when conditions qualify; macOS only.

Revenue

One-time purchase or a low-cost annual subscription; premium tier adds multiple locations and best-window alerts.

Why now

Weather and astronomy APIs are free and stable, menu-bar apps are cheap to build, and this small polished tool can spread by word of mouth in Mac communities, making it ideal for a solo developer.