The night sky on your birthday: September 21
September 21 is day 265 of the year. Here is what the sky holds for everyone born on it — and a way to get the real sky above the exact place and hour you were born.
The Sun's constellation on September 21
On your birthday the Sun stands in front of Virgo, which here matches the horoscope sign Virgo. Because the Sun is in Virgo, that constellation is hidden in daylight on your birthday: you see it best around six months later.
Overhead at midnight on September 21
- Northern hemisphere (40°N — New York, Madrid, Beijing): Andromeda, Pegasus, Lacerta and Pisces; brightest stars high up: Deneb (54°), Capella (34°) and Vega (30°).
- Southern hemisphere (40°S — Melbourne, Buenos Aires region, Wellington): Phoenix, Sculptor, Piscis Austrinus and Grus; brightest stars high up: Fomalhaut (74°), Achernar (67°) and Canopus (28°).
Meteor showers around September 21
No major annual meteor shower is active on this date — the sky is all stars and planets.
The Moon on your next birthday
On the evening of September 21, 2027 the Moon will be waning gibbous (67% lit).
The exact sky of the night you were born
These are averages for a latitude. Your own sky depends on the city, the year and the hour: Firmament draws the real stars, constellations, Moon and planets above your birthplace at your birth time, as a print-ready A3 poster — $4.99, delivered instantly as a PDF.
Make the sky of the night you were born — $4.99
Set your year and city on the next page; the day and month are already filled in.