Birthday signs · Leo season
What zodiac sign is August 17?
In tropical zodiac terms, August 17 is found in Leo. Among the 101 years from 1930 through 2030, the Sun stood in Leo at noon UTC on August 17, at 23.61° to 25.1° Leo. August 17 marks day 25 to 27 of the Leo season, located in the late part, with element fire.
Calculated across 1930–2030 · checked .
August 17 is Leo
| Leo at noon UTC | 101 of 101 years, 1930–2030 |
|---|---|
| Nearest change of sign | at least 5 days away |
| Birth time needed for the sign | no |
August 17 at a glance
| Sign | ♌︎ Leo, the Lion |
|---|---|
| Element and mode | fire, fixed |
| Polarity | positive (masculine) |
| Ruler | the Sun (traditional) |
| Sun on this date | 23.6° to 25.1° Leo at noon UTC, 1930–2030 |
| Day of the season | day 25 to 27 of Leo season |
| Decan | third (20°–30°), face of Mars |
| Sidereal sign (Lahiri) | Leo |
| Day number | 8 (modern numerology) |
Rulers: Ptolemy; modern list.
The decan: late Leo
| Noon Sun | 23.61° to 25.1° Leo |
|---|---|
| Decan | third (20°–30°) |
| Face ruler, Chaldean order | Mars |
Faces after Lilly, in Chaldean order.3
August 17 by the numbers
| Day number | 8 (1 + 7 = 8) |
|---|---|
| Month-day number | 7 (8 + 8 = 16, then 1 + 6 = 7) |
| System | modern numerology, digit sums |
Digit sums as numerology guides give them.4
Where the date falls in the season
| Day of Leo season | 25 to 27 |
|---|---|
| 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 late in Leo, this person meets the end of the sign's warm season with a strong wish to be seen for real effort. Fixed fire gives steady staying power, while the Mars face adds a sharp edge that appears when a plan stalls. Some weeks they want the room to turn toward them, then they catch themselves and hand the spotlight to a friend who has earned it. That pull between wanting recognition and wanting to finish the work is a familiar tension in their own story.
Interpretation, not prediction.
The sidereal sign
| Sidereal sign, Lahiri ayanamsa | Leo, all 101 years |
|---|---|
| Noon Sun, sidereal Leo | 0.1°–1.4° |
| Convention | Indian (Vedic) astrology |
Ayanamsa convention.5
Born on August 17
- John III Sobieski (1629–1696), King of Poland and Grand Duke of Lithuania
- Mae West (1893–1980), American actress, singer, screenwriter, and writer
- Jiang Zemin (1926–2022), former General Secretary of the Chinese Communist Party
- V. S. Naipaul (1932–2018), Trinidadian-British writer
- Robert De Niro (1943), American actor
- Herta Müller (1953), German-Romanian novelist, poet and essayist
- Sean Penn (1960), American actor
- Thierry Henry (1977), French association football player and manager
Birth dates checked on Wikidata.6
August 17 in history
Observed on this date:
- Engineer's Day (Colombia)
- Independence Day, celebrates the independence proclamation of Indonesia from Japan in 1945.
Events on August 17:
- 1186: Georgenberg Pact: Ottokar IV, Duke of Styria and Leopold V, Duke of Austria sign a heritage agreement in which Ottokar gives his duchy to Leopold and to his son Frederick under the stipulation that Austria and Styria would henceforth remain undivided.
- 1798: The Vietnamese Catholics report a Marian apparition in Quảng Trị, an event which is called Our Lady of La Vang.
- 1907: Pike Place Market, one of the oldest continuously operated public farmers' markets in the U.S. and a popular tourist attraction, opens in Seattle, Washington.
- 1970: Soviet Union Venera program: Venera 7 launched. It will become the first spacecraft to successfully transmit data from the surface of another planet (Venus).
- 2008: American swimmer Michael Phelps becomes the first person to win eight gold medals at one Olympic Games.
How the answer was worked out
Using Astronomy Engine, the Sun's tropical longitude on August 17 was calculated at noon UTC for each year between 1930 and 2030, and the sign of each year was read from it.1 How the Machine works
Questions people also ask
What zodiac sign is August 17?
When the Sun at noon UTC is counted, August 17 is Leo in all 101 sampled years from 1930 to 2030.
Is August 17 on a zodiac cusp?
No. The noon Sun was in Leo on every August 17 from 1930 to 2030, and August 17 sits at least 5 days from the nearest change of sign.
What decan is August 17?
The third decan of Leo (20°–30°) is where August 17 sits in every sampled year, so its Chaldean face ruler is Mars.
What is the birthday number for August 17?
By adding digits, modern numerology arrives at day number 8 and month-day number 7 for August 17.
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 17 — Wikipedia (Wikimedia On this day feed); birth dates checked on Wikidata. Verified .