Famous Nights · 23 September 1846

The night we found Neptune

«Exactly where the maths said»

23 September 1846, Berlin. Le Verrier worked out where an unseen planet had to be; that same night Galle pointed the telescope there and found Neptune, almost exactly where the maths said. Every star in its true position. What's your night?

Berlin, Germany · 23 September 1846 · 23:30 local · 52.5200° N · 13.4050° E

Now map your own night — from £34.99 Set to this famous sky below — or map your own date and place in two taps.

The night we found Neptune — star map art print

The short film

Eight seconds over Berlin.

The era scene is an AI reconstruction. The sky above it is not — every star is computed from astronomical data for 23 September 1846, 23:30 local time.

Your turn

Make it your night.

Below, the map is set to this famous sky. Start fresh with your own date and place — the night you met, a birthday, a wedding — from £34.99. Or keep this historic sky as a print.

Map my own night — from £34.99 Keep this historic sky →

✦ Star Map ☾ The Moon