Signs, elements and the whole chart
- Zodiac sign and retrograde statistics
- Which Sun sign is most common by calendar days and by US births, how long the Sun stays in each sign, how often each planet is retrograde. 35,064 dates, 1930–2025, at noon UTC; 62,187,024 SSA births and 39,722,137 CDC births
- Zodiac elements: dominant and missing
- How often each element leads a chart or has no planet at all, the usual spreads across the four, Sun and Moon in one element. 35,064 dates, one moment each in New York, 10 planets
- Fire, earth, air and water signs
- For each element: how many of the five personal planets fall in it, how often it is missing, by decade of birth. the same 35,064 dates, on each of the four element pages
- Stellium statistics
- Share of dates with three or more planets in one sign, by sign and by decade. 35,064 dates at noon UTC
- Sun, Moon and rising combinations
- How often all three share a sign or an element, and how often each of the 1,728 combinations comes up. 420,768 moments per city, 5 US cities
- Zodiac sign dates by year
- On which calendar day the Sun entered each sign, in Eastern and Pacific time, and which dates change sign during the day. 96 years, 1930–2025
Rising sign, Midheaven, houses and the Moon
- Rising sign shares
- Share of the day each sign spends on the horizon, from Miami to Anchorage, and how often the rising sign changes within half an hour. 4,207,680 moments per city, 5 US cities
- Midheaven shares
- Share of the day for each Midheaven sign and which house it lands in under Whole Sign and Equal houses. 4,207,680 moments per city, 5 US cities
- Houses: empty and full
- How many houses are empty in a typical chart, how often each house holds a planet, Placidus against Whole Sign. 35,064 charts per city, 5 US cities
- Moon sign without a birth time
- On how many days the Moon changes sign, so that the birth time decides the Moon sign. 35,064 days, 5 US cities
- Full moons
- Supermoons, micromoons, years with 13 full moons, blue moons and lunar eclipses. 1,187 full moons, 1930–2025
- Eventful and quiet days
- How many days bring a planet changing sign, a station or a new or full moon, and how many planets are retrograde at once. 35,064 days in New York time
Relationships and timing
- Sun sign pairs
- How often two random birth dates fall at each distance on the zodiac, and how often their Venus and Mars connect. every pair of the 35,064 dates, counted exactly
- Synastry aspects
- How many aspects a typical pair of charts has, easy and tense, and which planet pairs connect most often. 200,000 random pairs of birth dates
- Venus–Mars aspects and composite charts
- How common each Venus–Mars aspect is between two people and what a composite chart usually shows. 200,000 random pairs of birth dates
- Transits from the slow planets
- How many exact aspects Jupiter to Pluto make to one point of a chart in a year. 34,560 point-years, every degree, 1930–2025
- Saturn return ages
- At what age the first and second Saturn return fall, and how often Saturn touches the spot three times. 35,064 birth dates
- Solar return dates
- How often the solar return falls on a different calendar day than the birthday. 4,000 random births, 231,586 returns
Download the data
The tables behind the statistics page and the stellium page are plain CSV files. Each starts with a comment line naming the data version, the date range and the ephemeris.
- Sun signs by calendar days (CSV) 12 rows: dates, share and days the Sun stays in each sign
- US births by Sun sign (CSV) SSA 2000–2014 and CDC 1994–2003, births and births per day for each sign
- Retrogrades by planet (CSV) share of dates, days a year, periods and 2026 for each planet
- Retrogrades by year (CSV) one row per year, retrograde days and periods for each planet
- Stellium by sign (CSV) dates with three or four planets in each sign
- Stellium by decade (CSV) share of stellium dates and the most common stellium sign per decade
Free to reuse under CC BY 4.0: credit The Zodiac Atlas and link to the page the table comes from. How to cite the statistics page is at the end of zodiac sign and retrograde statistics.
How we count
Planet positions come from astronomy-engine, an open-source ephemeris library, in the tropical zodiac. Counts over dates take one moment per date, at noon UTC or at a fixed point of the local day; counts that need the rising sign or houses step through the day every few minutes or hours of local clock time in Miami, Los Angeles, New York, Seattle and Anchorage. A share is a share of dates or moments, not of people, since births are not spread evenly over the year. The one count of real people is the US birth data, which is kept separate.
Each page says which sample it uses next to its numbers. The full method, including how we checked the calculation against published charts, is on how we create our readings.
Sources
- Astronomy Engine: the open-source ephemeris library behind our planet positions, dates and statistics
- FiveThirtyEight: U.S. births data: daily US birth counts from the SSA (2000 to 2014) and CDC/NCHS (1994 to 2003)
- CDC National Vital Statistics System: Birth Data: official US birth totals
- How we create our readings: our own calculation of sign dates, positions and the 1930 to 2025 statistics