What is a natal chart?

A natal (birth) chart is a map of the sky for the exact date, time, and place of your birth. It shows where the Sun, Moon, planets, and key points sat across the twelve zodiac signs and houses, and the angles (aspects) between them — the basis of a western astrology reading.

What is western astrology?

Western (tropical) astrology interprets the positions of the planets relative to the seasons, using the tropical zodiac anchored to the equinoxes. Ocean Gull calculates these positions with the Swiss Ephemeris for professional accuracy.

Yes — Ocean Gull has a free plan that includes natal charts and core features. Paid plans add advanced points, higher transit quotas, and more.

What ephemeris does Ocean Gull use?

Ocean Gull uses the Swiss Ephemeris for chart and transit calculations, the same engine professional astrologers rely on for precision.

Zodiac signs

The 12 signs divide the ecliptic into equal 30° sectors. Each sign carries an element, a modality, and a ruling planet, shaping how its energy expresses.

Sign	Symbol	Element	Modality	Ruler	Dates
Aries	The Ram	Fire	Cardinal	Mars	Mar 21 – Apr 19
Taurus	The Bull	Earth	Fixed	Venus	Apr 20 – May 20
Gemini	The Twins	Air	Mutable	Mercury	May 21 – Jun 20
Cancer	The Crab	Water	Cardinal	Moon	Jun 21 – Jul 22
Leo	The Lion	Fire	Fixed	Sun	Jul 23 – Aug 22
Virgo	The Maiden	Earth	Mutable	Mercury	Aug 23 – Sep 22
Libra	The Scales	Air	Cardinal	Venus	Sep 23 – Oct 22
Scorpio	The Scorpion	Water	Fixed	Pluto (traditional: Mars)	Oct 23 – Nov 21
Sagittarius	The Archer	Fire	Mutable	Jupiter	Nov 22 – Dec 21
Capricorn	The Sea-Goat	Earth	Cardinal	Saturn	Dec 22 – Jan 19
Aquarius	The Water Bearer	Air	Fixed	Uranus (traditional: Saturn)	Jan 20 – Feb 18
Pisces	The Fishes	Water	Mutable	Neptune (traditional: Jupiter)	Feb 19 – Mar 20

Aries

Fire · Cardinal · ruled by Mars

Initiative, courage, action

The pioneer of the zodiac. Aries energy is bold, direct, and impulsive — the spark that starts new cycles. It seeks identity through action and competition.

Taurus

Earth · Fixed · ruled by Venus

Stability, sensuality, persistence

The builder of the zodiac. Taurus values security, comfort, and the tangible. It moves slowly but decisively, grounded in the body and the senses.

Gemini

Air · Mutable · ruled by Mercury

Curiosity, communication, versatility

The messenger of the zodiac. Gemini is endlessly curious, drawn to ideas, conversation, and connection. Quick-thinking and adaptable, sometimes scattered.

Cancer

Water · Cardinal · ruled by Moon

Nurturing, memory, emotional depth

The caretaker of the zodiac. Cancer is deeply emotional and protective, attuned to family, home, and inner life. Sensitive, with a hard outer shell.

Leo

Fire · Fixed · ruled by Sun

Self-expression, creativity, generosity

The sovereign of the zodiac. Leo radiates warmth and creative force. It seeks recognition through authentic self-expression and loyal-hearted leadership.

Virgo

Earth · Mutable · ruled by Mercury

Discernment, service, refinement

The craftsman of the zodiac. Virgo notices details others miss and brings care to whatever it touches. Practical, analytical, oriented toward improvement.

Libra

Air · Cardinal · ruled by Venus

Harmony, partnership, fairness

The diplomat of the zodiac. Libra weighs perspectives and seeks balance, beauty, and just outcomes. Relational and refined, sometimes indecisive.

Scorpio

Water · Fixed · ruled by Pluto (traditional: Mars)

Intensity, transformation, depth

The investigator of the zodiac. Scorpio penetrates surface appearances to reach the truth beneath. Deeply emotional, magnetic, and unafraid of darkness.

Sagittarius

Fire · Mutable · ruled by Jupiter

Exploration, meaning, optimism

The seeker of the zodiac. Sagittarius hunts for meaning, truth, and broader horizons. Philosophical and adventurous, sometimes restless or dogmatic.

Capricorn

Earth · Cardinal · ruled by Saturn

Discipline, ambition, responsibility

The architect of the zodiac. Capricorn climbs steadily toward long-term goals, valuing structure, mastery, and earned authority.

Aquarius

Air · Fixed · ruled by Uranus (traditional: Saturn)

Innovation, community, individuality

The visionary of the zodiac. Aquarius thinks in systems and futures, valuing freedom, originality, and collective progress over convention.

Pisces

Water · Mutable · ruled by Neptune (traditional: Jupiter)

Compassion, imagination, transcendence

The mystic of the zodiac. Pisces dissolves boundaries between self and world, attuned to dream, art, and spirit. Empathic, intuitive, sometimes elusive.