Serena Williams

Tennis player

Tennis player who won 23 Grand Slam singles titles, the most of any player in the Open Era, retiring from professional tennis in 2022.

Born: September 26, 1981
Time: Unknown
Place: Saginaw, Michigan, US

Sun

Libra

2°59′–3°58′ across the day

Moon

Virgo

9°28′–22°16′ across the day

Rising

Needs a birth time

we never invent one

Notes on this chart

From the Earth, Mercury can never appear far from the Sun, because it orbits inside us. About twenty-eight degrees is the limit. In this chart it stands 25.9° away, near the far end of what is available to it.

The result is a chart where Mercury sits at one end of a long line with everything else piled up behind it.

Five of the ten classical planets are in Libra: the Sun, Mercury, Jupiter, Saturn, and Pluto. All ten fit inside 127° of the circle. The other 233° holds nothing. None of the ten is retrograde, uncommon for a group that size. The Moon, over in Virgo, is the only classical planet in an Earth sign.

Every placement, to the arcminute

The sky over Saginaw, Michigan, US across September 26, 1981. Ranges cover the whole day. Tropical · solar whole-sign houses.

Body	Sign	Position	House	Motion
Sun	Libra	2°59′ Libra → 3°58′ Libra	1st	Direct
Moon	Virgo	9°28′ Virgo → 22°16′ Virgo	12th	Direct
Mercury	Libra	28°57′ Libra → 29°46′ Libra	1st	Direct
Venus	Scorpio	15°21′ Scorpio → 16°30′ Scorpio	2nd	Direct
Mars	Leo	15°03′ Leo → 15°40′ Leo	11th	Direct
Jupiter	Libra	16°52′ Libra → 17°04′ Libra	1st	Direct
Saturn	Libra	11°36′ Libra → 11°44′ Libra	1st	Direct
Uranus	Scorpio	27°13′ Scorpio → 27°15′ Scorpio	2nd	Direct
Neptune	Sagittarius	22°14′ Sagittarius	3rd	Direct
Pluto	Libra	23°25′ Libra → 23°28′ Libra	1st	Direct
Chiron	Taurus	22°26′ Taurus → 22°25′ Taurus	8th	Retrograde
Black Moon Lilith	Sagittarius	0°15′ Sagittarius → 0°21′ Sagittarius	3rd	Direct · mean
North Node	Cancer	28°19′ Cancer → 28°16′ Cancer	10th	Retrograde · mean
South Node	Capricorn	28°19′ Capricorn → 28°16′ Capricorn	4th	Retrograde · mean

The Moon that day

Balsamic Moon

Read from the day’s range; the exact face depends on the hour.

The shape of this sky

The ten classical planets, weighed by element and modality. Only sign-certain placements are counted.

Elements

Fire
Earth
Air
Water

Modalities

Cardinal
Fixed
Mutable

Marks of the moment

Born under a Balsamic Moon
No planets were retrograde
Houses are solar: whole signs from the Sun

How the planets sit with each other

Aspects are the working relationships in a chart, listed tightest first. A smaller orb is a stronger contact. Contacts marked "part of the day" depend on the unknown birth time.

Tension

Squares and oppositions: friction that makes the engine turn.

Moon square Neptune 0.1–12.8° part of the day
Venus square Mars 0.3–0.8° exact all day
Mercury square North Node 0.6–1.5°· all day

Flow

Trines and sextiles: what runs easily, sometimes too easily.

Moon sextile Venus 0.1–5.9° part of the day
Moon trine Chiron 0.1–13.0° part of the day
Uranus trine North Node 1.0–1.1°· all day
Neptune sextile Pluto 1.2°· all day
Mars sextile Jupiter 1.4–1.8°· all day
Black Moon Lilith trine North Node 1.9–2.1°· all day
Mars sextile Saturn 3.5–3.9°· all day
Moon sextile Uranus 5.0–17.7° part of the day

Fused

Conjunctions: planets standing so close they act as one.

Jupiter conjunction Saturn 5.3°· all day
Mercury conjunction Pluto 5.5–6.3° part of the day
Sun conjunction Saturn 7.8–8.6° part of the day

The full aspect grid

The astrologer’s aspectarian: each glyph on the stair names its row and its column. Hover any symbol for the contact in words.

Sun	Sun
Moon		Moon
Mercury			Mercury
Venus		Moon Sextile Venus, orb 0.0–5.9°, in orb part of the day		Venus
Mars				Venus Square Mars, orb 0.3–0.8°	Mars
Jupiter					Mars Sextile Jupiter, orb 1.4–1.8°	Jupiter
Saturn	Sun Conjunction Saturn, orb 7.8–8.6°, in orb part of the day				Mars Sextile Saturn, orb 3.5–3.9°	Jupiter Conjunction Saturn, orb 5.3°	Saturn
Uranus		Moon Sextile Uranus, orb 5.0–17.7°, in orb part of the day						Uranus
Neptune		Moon Square Neptune, orb 0.0–12.8°, in orb part of the day							Neptune
Pluto			Mercury Conjunction Pluto, orb 5.5–6.3°, in orb part of the day						Neptune Sextile Pluto, orb 1.2°	Pluto
Chiron		Moon Trine Chiron, orb 0.1–13.0°, in orb part of the day									Chiron
Black Moon Lilith												Black Moon Lilith
North Node			Mercury Square North Node, orb 0.6–1.5°					Uranus Trine North Node, orb 1.0–1.1°				Black Moon Lilith Trine North Node, orb 1.9–2.1°	North Node

Named shapes in this sky

Configurations detected from the aspects above; nothing here was assumed.

Stellium in Libra

Sun Mercury Jupiter Saturn Pluto

Three or more planets gathered in one sign: one theme, turned up loud.

Solar houses

Without a birth time there is no Ascendant, so houses here are whole signs counted from the Sun: the standard solar chart astrologers use when the clock is unknown.

1st Libra

2nd Scorpio

3rd Sagittarius

4th Capricorn

5th Aquarius

6th Pisces

7th Aries

8th Taurus

9th Gemini

10th Cancer

11th Leo

12th Virgo

Who else lives under this sky

Sun in Libra

Moon in Virgo

Serena’s sky, beside yours

Every chart on Undersky is computed the same way, including yours.

Serena

Sun in Libra
Moon in Virgo
Rising unknown: no birth time
Born September 26, 1981 · Saginaw, Michigan, US

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