Sky viewer
Location off — enter a place instead.
A live view from where you are, oriented as if you're looking up.
or enter a place below
Choose an evening anywhere in the world.
Any night since 1900 — a birthday, an anniversary, a famous night.
Space age
Nights that changed things
Great nights in the sky
Drawing the sky over Paris, France…
Calculating this sky…
Accurate Moon phase and naked-eye planets · zero ads · zero signup
Questions, answered
Is the sky viewer free?
Yes. Exploring and sharing the sky is free. A keepsake poster costs $15 only if you choose to make one.
Is this the real sky?
Yes. The view is computed for your date, local time, and coordinates. Planet positions use an honest low-precision model suited to a looking-up view.
What appears in the viewer?
Bright named stars, restrained constellation figures, the Moon's true phase, and only the naked-eye planets above your horizon.