Learn astrology from the ground up
Four ingredients make every chart: elements, modalities, planets and houses. Take them one at a time, in any order, and each page explains what you are looking at.
Astrology in Four Building Blocks
Every natal chart, no matter how elaborate it looks, is assembled from the same four kinds of ingredient. Signs describe style. Planets describe function. Houses describe the area of life where something plays out. And the elements and modalities sort the twelve signs into families that behave alike.
Once you can tell those four apart, a chart stops looking like a wall of symbols and starts reading like a sentence: a planet (what) in a sign (how) in a house (where). "Mars in Virgo in the tenth house" is a perfectly readable phrase: drive, expressed carefully and in detail, aimed at career. This section teaches the vocabulary one piece at a time.
A Sensible Order to Learn Them In
Start with the elements. Four categories are easy to hold in your head, and their descriptions are simple enough to test against people you already know. A friend who acts before thinking is showing you fire; one who asks what it will cost is showing you earth.
Next come the modalities, which explain why two signs from the same element can behave so differently. Taurus and Virgo are both earth, but one holds its ground and the other keeps refining, because one is fixed and the other mutable.
Then the planets, which is where astrology gets personal. The Sun is shared by everyone born in the same month, but the positions of Mercury, Venus and Mars spread people out, which is why two people with the same Sun sign can feel so unlike each other. Houses come last, because they depend on your exact birth time and place.
Why Houses Need an Exact Time
Signs and planets mostly follow from your birth date. Houses do not. They are a map of the sky divided relative to the horizon where you were born, and the whole map turns once every twenty-four hours as the Earth rotates. A baby born at dawn and another born four hours later in the same town can share a Sun sign and have completely different houses.
That is why an honest rising sign always asks for a time and a place. It is also why, if you do not know your birth time, it is wise to treat anything about houses and the ascendant as unknown rather than as a guess. The Birth Chart Studio will compute all of it once you supply those details.
Two Zodiacs, and Why Neither Is Wrong
Western astrology uses the tropical zodiac, which starts the sign of Aries at the March equinox, when the Sun crosses the celestial equator heading north. Vedic astrology uses the sidereal zodiac, which anchors the signs to the background stars. Because the Earth's axis slowly wobbles over about 26,000 years, the two have drifted roughly 24 degrees apart, so a tropical Leo is often a sidereal Cancer.
Both are internally consistent. They simply measure from different reference points. Everything on this site uses the tropical zodiac, because that is what Western astrology means when it names a sign.
What Astrology Does Not Claim
Astrology is not a science, and it does not cause events. Careful practitioners talk about tendencies, themes and symbolic relationships rather than about what will happen on a given date. It gives you no basis for decisions about health, money or the law, and we say so on every page that could be mistaken for saying otherwise.
Read as a symbolic language for reflecting on temperament and timing, it is old, coherent and sometimes surprisingly useful. Read as a forecast, it is neither reliable nor what its own thoughtful practitioners claim for it. That is the approach the rest of this section takes.