Birthday signs · Libra season
What zodiac sign is September 23?
Between 1930 and 2030, the noon UTC Sun shows September 23 in Libra during 74 of 101 years and in Virgo during 27 years. The noon Sun on September 23 extended from 29.49° Virgo to 0.99° Libra. The birth year and time settle which sign applies to September 23.
Calculated across 1930–2030 · checked .
September 23: Libra or Virgo
| Libra at noon UTC | 74 of 101 years |
|---|---|
| Virgo at noon UTC | 27 of 101 years |
| Virgo years include | 1930, 1931 and 1933 |
| Settled by | birth year and time |
September 23 at a glance
| Sign | ♎︎ Libra (74 years) or ♍︎ Virgo (27) |
|---|---|
| Element and mode | air, cardinal |
| Polarity | positive (masculine) |
| Ruler | Venus (traditional) |
| Sun on this date | 29.5° Virgo to 1° Libra at noon UTC, 1930–2030 |
| Day of the season | Libra day 1 or 2; Virgo day 31 |
| Decan | first (0°–10°), face of the Moon |
| Sidereal sign (Lahiri) | Virgo |
| Day number | 5 (modern numerology) |
Rulers: Ptolemy; modern list.6
The decan: early Libra
| Noon Sun | 29.49° Virgo to 0.99° Libra |
|---|---|
| Decan | first (0°–10°) |
| Face ruler, Chaldean order | the Moon |
| Virgo years | 29.49°–30° Virgo |
Faces after Lilly, in Chaldean order.3
September 23 by the numbers
| Day number | 5 (2 + 3 = 5) |
|---|---|
| Month-day number | 5 (9 + 5 = 14, then 1 + 4 = 5) |
| System | modern numerology, digit sums |
Digit sums as numerology guides give them.4
Where the date falls in the season
| Day of Libra season | 1 or 2 (in its Libra years) |
|---|---|
| Day of Virgo season | 31 (in its Virgo years) |
| Libra season opened | September 22 (1 year) or September 23 (73) |
| Libra season closed | October 22 (37 years) or October 23 (37) |
| Element and mode | air, cardinal |
| Traditional ruler | Venus |
Seasons by the noon-UTC rule; rulers after Ptolemy.2
Born at this point in Libra season
Someone born on September 23 arrives just as the season turns toward balance, while the scales have barely begun to move. Standing in that doorway, they weigh two invitations at once. Asked to choose between a friend's plan and a quiet wish of their own, they feel the pull to keep the peace. Later, they wonder whether that choice was really theirs. Their work is learning to weigh their own needs with the same care they give to others.
Interpretation, not prediction.
The sidereal sign
| Sidereal sign, Lahiri ayanamsa | Virgo, all 101 years |
|---|---|
| Noon Sun, sidereal Virgo | 6°–7.3° |
| Convention | Indian (Vedic) astrology |
Ayanamsa convention.5
Born on September 23
- Augustus (63 BCE–14), first emperor of the Roman Empire and founder of the Julio-Claudian dynasty
- Kublai Khan (1215–1294), founding emperor of the Yuan dynasty, grandson of Genghis Khan
- Jaroslav Seifert (1901–1986), Czechoslovak poet, Nobel prize laureate
- Aldo Moro (1916–1978), Italian politician
- Ray Charles (1930–2004), American singer, pianist and songwriter
- Michel Temer (1940), 24th Vice-President of Brazil from 2011 to 2016 and 37th President of Brazil from 2016 to 2019
- Julio Iglesias (1943), Spanish singer and lawyer
- Bruce Springsteen (1949), American rock singer
Birth dates checked on Wikidata.7
September 23 in history
Observed on this date:
- Grito de Lares (Puerto Rico)
- Haifa Day (Israel)
- Holocaust Memorial Day (Lithuania)
- Kyrgyz Language Day (Kyrgyzstan)
- National Day (Saudi Arabia)
- Teachers' Day (Brunei)
- Celebrate Bisexuality Day (bisexual community)
- International Day of Sign Languages
Events on September 23:
- 1846: Astronomers Urbain Le Verrier, John Couch Adams and Johann Gottfried Galle collaborate on the discovery of Neptune.
- 1879: The Macedo-Romanian Cultural Society is founded.
- 1932: Saudi National Day: Crown Prince (later king) Faisal of Saudi Arabia, on behalf of Ibn Saud, proclaims the unification of the Kingdom of Saudi Arabia, the current iteration of the Third Saudi State.
- 1973: Argentine general election: Juan Perón returns to power in Argentina.
- 2022: Voting begins in the five-day sham annexation referendums in Russian-occupied Ukraine, leading to Russian annexation of Donetsk, Kherson, Luhansk and Zaporizhzhia oblasts.
How the answer was worked out
With Astronomy Engine, the Sun's tropical longitude on September 23 was computed at noon UTC for each year from 1930 through 2030, and each year's sign was taken from it.1 How the Machine works
Questions people also ask
What zodiac sign is September 23?
When sampled at noon UTC over 101 years, September 23 is usually Libra in 74 years and Virgo in 27 years.
Is September 23 on a zodiac cusp?
Yes. During September 23, the Sun in some years crossed from Virgo into Libra, which means that at noon UTC the sample is split between Libra in 74 years and Virgo in 27, and the birth year and time decide the applicable sign.
What decan is September 23?
For every sampled year, September 23 is placed in the first decan of Libra (0°–10°), so the Chaldean face ruler assigned is the Moon.
What is the birthday number for September 23?
Adding digits gives September 23 a day number of 5 and a month-day number of 5 in modern numerology.
Sources
- Astronomy Engine JavaScript reference — Don Cross, Astronomy Engine. Verified .
- Ptolemy, Tetrabiblos, Book I — LacusCurtius, University of Chicago. Verified .
- Decan (astrology): the faces of the planets (after Lilly) — Wikipedia. Verified .
- Life Path Number — Numerology.com (practitioner site). Verified .
- Ayanamsa (Lahiri and other sidereal conventions) — Wikipedia. Verified .
- Libra (astrology) — Wikipedia. Verified .
- Wikipedia: September 23 — Wikipedia (Wikimedia On this day feed); birth dates checked on Wikidata. Verified .