October has two zodiac signs: Libra until 22 October, and Scorpio from 23 October.

| Born | Sign | Constellation · brightest star |
|---|---|---|
| 1–22 October | Libra | Libra · Zubeneschamali |
| 23–31 October | Scorpio | Scorpius · Antares |
These are the usual calendar dates. The moment the Sun moves from Libra into Scorpio 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.
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.
Scorpio covers 23 October – 21 November. Its constellation is Scorpius, and its brightest star is Antares.
From the UK, Scorpius is best placed in the evening sky in June and July, low on the southern horizon.
Each person is drawn as the constellation of their sign, from the familiar calendar dates. Everyone born 1–22 October appears as Libra, with Zubeneschamali named; everyone born 23–31 October as Scorpio, with Antares named. Two to six people — first names and birthdays only.
October has two zodiac signs: Libra until 22 October and Scorpio from 23 October.
In the usual calendar dates, 23 October is the first day of Scorpio. The exact moment the Sun moves into the next sign shifts slightly from year to year, so a birth on 22 or 23 October can fall either side.
The constellation Scorpius, whose brightest star is Antares.
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