Every birthday is one more lap around the Sun.
Enter your birthday and get a short film of your journey through space: the planets on the day you were born, every lap since, and your place in the Milky Way. Calculated from NASA JPL planetary data.
Finding the planets…
Drag to look around. Planet positions are to scale; the planets are drawn larger so you can see them.
What’s in your film
The sky on your birthday
All eight planets and Pluto, exactly where they were on the day you were born.
Lap one
Time starts. Earth sets off around the Sun, and the other planets fade away.
The Sun moves
The Sun travels through space at 19.7 km/s, so each lap becomes a loop that never closes.
Every birthday since
Loop after loop up to today, each birthday marked with its year.
The Milky Way
The camera pulls back to the Sun’s orbit around the galaxy, 26,000 light-years from the center.
Your numbers
Laps, distance, days, Moon orbits and seconds, then three cards only your birthday can make: the Sun’s dance, your sky and your milestones.
What’s real and what’s drawn
- To scale
- Every planet position and every path, calculated from NASA JPL Horizons.
- Drawn larger
- The Sun and planets, so you can see them. At true size they would be invisible specks.
- Measured against nearby stars
- The loops. Against the whole galaxy, moving at about 230 km/s, the same path stretches into an almost straight wave.
- A rendered model
- The Milky Way. Nobody has photographed our galaxy from outside.