Birthday signs · Leo season
What zodiac sign is August 13?
August 13 occupies the sign of Leo in the tropical zodiac. Over the 101 years from 1930 through 2030, the Sun occupied Leo at noon UTC on August 13, at 19.77° to 21.26° Leo. Day 21 to 23 of Leo season is August 13, which lies in the late part with the element fire.
Calculated across 1930–2030 · checked .
August 13 is Leo
| Leo at noon UTC | 101 of 101 years, 1930–2030 |
|---|---|
| Nearest change of sign | at least 9 days away |
| Birth time needed for the sign | no |
August 13 at a glance
| Sign | ♌︎ Leo, the Lion |
|---|---|
| Element and mode | fire, fixed |
| Polarity | positive (masculine) |
| Ruler | the Sun (traditional) |
| Sun on this date | 19.8° to 21.3° Leo at noon UTC, 1930–2030 |
| Day of the season | day 21 to 23 of Leo season |
| Decan | second (9 years) and third (92); faces: Jupiter, Mars |
| Sidereal sign (Lahiri) | Cancer |
| Day number | 4 (modern numerology) |
Rulers: Ptolemy; modern list.
The decan: late Leo
| Noon Sun | 19.77° to 21.26° Leo |
|---|---|
| Decans | second in 9 years, third in 92 |
| Decan line crossed | 20° |
| Face rulers, Chaldean order | Jupiter, Mars |
Faces after Lilly, in Chaldean order.3
August 13 by the numbers
| Day number | 4 (1 + 3 = 4) |
|---|---|
| Month-day number | 3 (8 + 4 = 12, then 1 + 2 = 3) |
| System | modern numerology, digit sums |
Digit sums as numerology guides give them.4
Where the date falls in the season
| Day of Leo season | 21 to 23 |
|---|---|
| Leo season opened | July 22 (7 years) or July 23 (79) or July 24 (15) |
| Leo season closed | August 22 (65 years) or August 23 (36) |
| Element and mode | fire, fixed |
| Traditional ruler | the Sun |
Seasons by the noon-UTC rule; rulers after Ptolemy.2
Born at this point in Leo season
Born on August 13, this person arrived near the edge where Leo's warm, public stretch begins to give way to something steadier. Life at this point in the season can feel like a hand-off nobody explained. Wanting to be noticed sits next to wanting a quiet room to think in. Someone who grew up here learns to hold a bold opinion and still ask a question before committing to it.
Interpretation, not prediction.
The sidereal sign
| Sidereal sign, Lahiri ayanamsa | Cancer, all 101 years |
|---|---|
| Noon Sun, sidereal Cancer | 26.3°–27.6° |
| Convention | Indian (Vedic) astrology |
Ayanamsa convention.5
Born on August 13
- Samuel de Champlain (1567–1635), 16/17th-century French explorer of North America
- John Logie Baird (1888–1946), Scottish inventor, demonstrating the world's first working television
- Alfred Hitchcock (1899–1980), British filmmaker
- Frederick Sanger (1918–2013), British biochemist
- Fidel Castro (1926–2016), Cuban politician, author and revolutionary
- Janet Yellen (1946), 78th United States Secretary of the Treasury
- Sridevi (1963–2018), Indian actress
- Alan Shearer (1970), English footballer
Birth dates checked on Wikidata.6
August 13 in history
Observed on this date:
- Independence Day, celebrates the independence of Central African Republic from France in 1960.
- International Lefthanders Day (International)
- Women's Day, commemorates the enaction of Tunisian Code of Personal Status in 1956. (Tunisia)
- World Organ Donation Day
Events on August 13:
- 554: Emperor Justinian I issues a Pragmatic Sanction in which he organises the renewed Roman rule over the recently re-conquered Italy. All privileges granted to Romans under the Gothic rule until 538 are confirmed, confiscated estates restored and the participation of the Roman Church in civil government increased.
- 1724: Johann Sebastian Bach leads the first performance of Nimm von uns, Herr, du treuer Gott, BWV 101, a chorale cantata on a famous tune.
- 1900: The steamer Deutschland of Hamburg America Lines sets a new record for the eastward passage when it docks in Plymouth, England, five days, 11 hours and 45 minutes after sailing from New York, breaking by three hours, six minutes its previous mark in its maiden voyage in July.
- 1960: The Central African Republic declares independence from France.
- 2020: Israel–United Arab Emirates relations are formally established.
How the answer was worked out
Astronomy Engine was used to calculate the Sun's tropical longitude on August 13 at noon UTC for each year from 1930 through 2030, and each year's sign was read from the result.1 How the Machine works
Questions people also ask
What zodiac sign is August 13?
August 13 falls in Leo in all 101 sampled years from 1930 to 2030, counting the Sun at noon UTC.
Is August 13 on a zodiac cusp?
No. Each August 13 from 1930 to 2030 shows the noon Sun in Leo, and August 13 stands at least 9 days from the nearest change of sign.
What decan is August 13?
Two decans of Leo contain August 13: the second, the face of Jupiter, holds 9 sampled years, and the third, the face of Mars, holds 92.
What is the birthday number for August 13?
Digit addition is the method by which modern numerology determines day number 4 and month-day number 3 for August 13.
Sources
- Astronomy Engine JavaScript reference — Don Cross, Astronomy Engine. Verified .
- Ptolemy, Tetrabiblos, Book I, sections 11-21 — 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 .
- Wikipedia: August 13 — Wikipedia (Wikimedia On this day feed); birth dates checked on Wikidata. Verified .