Willem de SitterBirth Chart

06/05/1872 01:45

AA - Birth record in hand

Astro-Databank

Sneek

Netherlands

53°02' ↑ North - 5°40' → East

00:00

Sun Moon Asc

Photo: Reproduction

Willem de Sitter was a Dutch mathematician, physicist and astronomer whose work played a central role in the emergence of relativistic cosmology. A professor and director of the Leiden Observatory, he is noted for applying Einstein’s theory of relativity to astronomy, publishing a series of papers in 1916–1917 that expanded understanding of the theory’s cosmological implications and influenced subsequent observational measurements. De Sitter is known for the model now called the de Sitter universe and for de Sitter space — solutions of Einstein’s field equations with a positive cosmological constant and no matter, which describe exponential expansion. His collaboration and long correspondence with Einstein culminated in a joint paper in 1932, in which they debated the universe’s shape and curvature in light of available data. Beyond cosmology, he worked on planetary dynamics and the motions of Jupiter’s satellites, and also contributed to the debate over the constancy of the speed of light. He received honors such as the Gold Medal of the Royal Astronomical Society and the Prix Jules Janssen, leaving a legacy that provided important foundations for twentieth‑century investigations in relativistic cosmology.

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Influences in signs

↣ Sun in Taurus - 15°49' - in house 2

↣ Moon in Aries - 28°14' - in house 2

↣ Mercury in Aries - 29°25' - in house 2 - retrograde

↣ Venus in Aries - 26°41' - in house 2

↣ Mars in Taurus - 18°41' - in house 2/3

↣ Jupiter in Cancer - 23°43' - in house 6

↣ Saturn in Capricorn - 21°14' - in house 12 - retrograde

↣ Uranus in Cancer - 27°34' - in house 6

↣ Neptune in Aries - 24°35' - in house 2

↣ Pluto in Taurus - 19°16' - in house 2/3

↣ North Node in Gemini - 12°45' - in house 4 - retrograde

↣ Ascendant in Aquarius - 26°30' - in house 1

↣ Midheaven in Sagittarius - 17°15' - in house 10

↣ Equatorial Ascendant in Pisces - 14°57'

Influences in houses

↣ Sun in house 2

↣ Moon in house 2

↣ Mercury in house 2

↣ Venus in house 2

↣ Mars in house 2/3

↣ Jupiter in house 6

↣ Saturn in house 12

↣ Uranus in house 6

↣ Neptune in house 2

↣ Pluto in house 2/3

↣ North Node in house 4

↣ Ascendant in house 1

↣ Midheaven in house 10

Aspects

↣ Sun and Mars conjunction (2°52' applying) parallel

↣ Sun and Saturn trine (5°26' applying)

↣ Sun and Pluto conjunction (3°27' applying)

↣ Sun and Equatorial Ascendant sextile (0°51' applying)

↣ Moon and Mercury conjunction (1°12' applying)

↣ Moon and Venus conjunction (1°32' separating) parallel

↣ Moon and Jupiter square (4°30' separating)

↣ Moon and Uranus square (0°40' separating)

↣ Moon and Neptune conjunction (3°38' separating) parallel

↣ Moon and Ascendant sextile (1°44' applying)

↣ Mercury and Venus conjunction (2°44' applying) parallel

↣ Mercury and Jupiter square (5°42' applying)

↣ Mercury and Uranus square (1°52' applying)

↣ Mercury and Neptune conjunction (4°50' applying)

↣ Mercury and Ascendant sextile (2°55' applying)

↣ Venus and Jupiter square (2°58' separating)

↣ Venus and Saturn square (5°27' separating)

↣ Venus and Uranus square (0°52' applying)

↣ Venus and Neptune conjunction (2°06' separating) parallel

↣ Venus and Ascendant sextile (0°12' applying)

↣ Mars and Jupiter sextile (5°03' applying)

↣ Mars and Saturn trine (2°34' applying)

↣ Mars and Pluto conjunction (0°35' applying)

↣ Mars and Equatorial Ascendant sextile (3°44' applying)

↣ Jupiter and Saturn opposition (2°29' separating) antiparallel

↣ Jupiter and Uranus conjunction (3°50' applying) parallel

↣ Jupiter and Neptune square (0°52' applying)

↣ Jupiter and Pluto sextile (4°28' separating)

↣ Jupiter and North Node parallel

↣ Jupiter and Midheaven antiparallel

↣ Saturn and Uranus opposition (6°19' separating) antiparallel

↣ Saturn and Neptune square (3°21' separating)

↣ Saturn and Pluto trine (1°59' applying)

↣ Saturn and North Node antiparallel

↣ Uranus and Neptune square (2°58' applying)

↣ Neptune and Ascendant sextile (1°55' separating)

↣ Pluto and Equatorial Ascendant sextile (4°19' applying)

↣ North Node and Equatorial Ascendant square (2°12' separating)

↣ North Node and Midheaven opposition (4°30' separating) antiparallel

The data used to calculate the charts comes from public sources, as do the descriptive texts. We use sources such as Wikipedia.

Charts with the Sun in the signs

Charts with the Moon in the signs

Charts with the Ascendant in the signs

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