What did the sky look like on your birthday?

Every birthday has its own sky. The exact positions of the stars on the day and place you were born form a pattern that belongs to that single moment.

How we know

Using a real star catalog and the same astronomy that observatories rely on, we can reconstruct the sky for any date from 1900 to 2100 — accurate to the minute and the location.

See yours

Pick your birth date, time and city, and watch your sky appear. It makes a striking, deeply personal piece of art.