Learn · The Sun, Moon and eight planets
The Sun
The Sun in a birth chart is the centre of the whole arrangement: its sign is the star sign most people know, and it says who you are at heart and what you set out to do.
Ask yourself who you are with the job, the family and the manners set aside, and the answer that is left is the Sun. It is what you would go on doing with no one watching, and what gives you a small, private pride when it goes well.
In your chart
Sign comes first: the style of the self, the colour everything you do is done in. House comes second and says more. A Sun in the tenth is spent on a public role, in the fourth on home and roots, in the seventh on partnership. Aspects come last, and show how the self meets everything else in you. A Sun that trines the Moon sits at peace with itself; a Sun squared by Saturn had to earn its confidence.
From a real analysis
In her chart: the Sun in Gemini, in the 9th house · 24°26′ Gemini
Your Sun, the part of you that wants to shine and be counted, stands in Gemini, the sign of the quick mind and the next good question. In everyday words: you light up when there is something new to figure out and someone to tell about it. You make complicated things sound easy, and you connect ideas that nobody thought to put side by side. You also have eleven interests and a calendar built for three.
Themes
The Sun is vitality, will and the wish to matter. When it is prominent, identity is not in question, and the work is sharing it generously enough to leave room for other people. When it is quiet, tucked into a cadent house or thinly aspected, the self is found later and held more lightly, and that has its own freedom.
In the older tradition the Sun is also the father, and more widely the figures of authority you grew up measuring yourself against. Its condition shows how comfortable you are being the authority yourself.
One degree a day
The Sun goes once round the zodiac in a year, about a degree a day, so its sign is the one placement most people know without a chart. With the Moon it is a luminary, one of the two lights, which astrology counts apart from the planets. Everything else in the chart is read in relation to it.
The tradition gives it two dignities: it rules Leo, and it is exalted in Aries, at 19°, where it is read as unusually strong. Its joy, in the old lists, is the ninth house, the one that looks far.
How the analysis treats it
The Sun opens the planet chapters: sign, degree and house named, then each aspect to it taken in turn. A chapter on the Sun and Moon together follows, on how the two work as a pair.
Your chart places the Sun to the minute of its sign, and the analysis names it by its degree, its sign and its house.
Sources: every position and date here comes from NASA JPL’s DE440 ephemeris and is checked against NASA’s JPL Horizons. How it is checked.
Your Sun
That is the Sun in everyone’s chart. Yours stands in one sign and one house, and those two say what it means for you. Free, and it takes a minute.