September has two zodiac signs: Virgo until 22 September, and Libra from 23 September.

| Born | Sign | Constellation · brightest star |
|---|---|---|
| 1–22 September | Virgo | Virgo · Spica |
| 23–30 September | Libra | Libra · Zubeneschamali |
These are the usual calendar dates. The moment the Sun moves from Virgo into Libra shifts slightly between years, so a birthday on the boundary can fall either side. A birth chart calculated for the exact minute and place shows where the Sun stood.
Virgo covers 23 August – 22 September. Its constellation is Virgo, and its brightest star is Spica.
From the UK, Virgo is best placed in the evening sky from April to June.
Libra covers 23 September – 22 October. Its constellation is Libra, and its brightest star is Zubeneschamali.
From the UK, Libra is best placed in the evening sky from May to July, low in the south.
Each person is drawn as the constellation of their sign, from the familiar calendar dates. Everyone born 1–22 September appears as Virgo, with Spica named; everyone born 23–30 September as Libra, with Zubeneschamali named. Two to six people — first names and birthdays only.
September has two zodiac signs: Virgo until 22 September and Libra from 23 September.
In the usual calendar dates, 23 September is the first day of Libra. The exact moment the Sun moves into the next sign shifts slightly from year to year, so a birth on 22 or 23 September can fall either side.
The constellation Libra, whose brightest star is Zubeneschamali.
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