Sun
The Sun is the center of our solar system and the center of who you are. It represents your core identity, your ego, and what makes you shine.
Understanding Sun
The Sun represents your true self - who you really are at your core. It shows your basic personality, willpower, and what gives you energy. When you express your Sun sign, you feel alive and authentic.
In a birth chart, the Sun is one of the most important factors. Your "zodiac sign" that you read in horoscopes is actually your Sun sign - the sign the Sun was traveling through when you were born.
The Sun rules Leo, the sign of creativity and self-expression. The Sun is exalted in Aries, where its energy for taking action is strengthened. It struggles in Aquarius (its detriment) and Libra (its fall), where individual identity must share space with collective or partnership concerns.
The Sun is the leader of the diurnal (day) sect, working alongside Jupiter and Saturn during daylight hours.
Ancient Wisdom
"The Sun has the power of heating and, to a moderate degree, of drying. This is made more easily perceptible in his case than in that of the other planets, both because of his size and because of the manifest changes of the seasons." — Ptolemy, Tetrabiblos (c. 150 CE)
Where Sun Works Best (and Struggles)
Domicile (Home Sign): Leo ♌
Sun is strongest here. It can express itself fully and naturally, like being in your own home where you can be completely yourself.
Exalted In: Aries at 19°
Sun is honored and powerful here. Its best qualities are elevated and strengthened, like being a celebrated guest.
Detriment (Struggles In): Aquarius ♒
Sun has to work harder here. Being opposite its home sign, it must adapt to an unfamiliar environment.
Fall (Weakest In): Libra
Sun is weakest here. Opposite its exaltation, its gifts are harder to express and may be undervalued.
What Sun Represents
- Your core personality and identity
- Ego and sense of self
- Confidence and self-esteem
- Creativity and self-expression
- Leadership ability and authority
- Father or father figures
- Vitality and life force
- What makes you feel alive
Body Parts Sun Rules
In medical astrology, each planet governs certain parts of the body:
- Heart
- Spine and back
- Right eye (in traditional texts)
- Overall vitality and constitution
Frequently Asked Questions
What does the Sun represent in astrology?
The Sun represents your core identity - who you really are inside. It shows your basic personality, confidence, and what makes you feel most alive and authentic.
What is your Sun sign?
Your Sun sign is the zodiac sign the Sun was in when you were born. This is what people usually mean when they ask "what is your sign?" It is the most well-known part of your chart.
What sign does the Sun rule?
The Sun rules Leo. Leo is where the Sun feels most at home and expresses itself best - creative, confident, and full of warmth.
Where is the Sun strongest and weakest?
The Sun is strongest in Leo (its home) and Aries (its exaltation). It is weakest in Aquarius (detriment) and Libra (fall) where individual needs compete with others.
What does a strong Sun mean in a chart?
A strong Sun means good self-esteem, clear identity, and natural confidence. You know who you are and can express yourself authentically.
Is the Sun considered a planet in astrology?
Yes! In astrology, the Sun is called a "planet" even though its actually a star. The Sun and Moon together are called "the luminaries" or "the lights."