Scorpio
Scorpio is the zodiac sign for people born between October 23 and November 21. Element: water; modality: fixed; ruling planets: Pluto and Mars. The cusp dates shift by a day from year to year, so if you were born near a cusp, check your sign with the calculator.
Personality
Scorpio is the sign of depth and extremes. Scorpios don't do half measures: if they get involved, it's all the way, and they expect the same from others. They read other people's motives before those motives are even voiced.
Strengths: self-control, loyalty, the ability to weather a crisis without backing down, a knack for seeing to the heart of things.
Weaknesses: jealousy, control and a tendency to silently store up grievances and then present them all at once.
The Gemini man and woman
The Scorpio man is strong, private and magnetic; he doesn't forgive betrayal and takes a long time to trust.
The Scorpio woman is deep and passionate; she gets close slowly, but when she does, it's for real.
Career and money
Work with crises, secrets and extreme situations suits them: psychology, medicine, criminal investigation, security, financial analysis, research.
Scorpios keep money under control, especially shared money; they know both how to earn and how to recover from losses.
Compatibility
Traditionally, the easiest matches are signs of the same element and of compatible elements; for Scorpio these are Cancer, Virgo, Capricorn and Pisces.
The most challenging are signs in square and in adjacent positions: Leo, Libra, Sagittarius and Aquarius. The opposite sign is Taurus: strong attraction and an equally strong struggle.
These are general rules of aspects, not a verdict. Each pair is covered separately in zodiac compatibility.
The sign in the birth chart
Your Sun sign is just the position of the Sun at the moment of birth. A full birth chart also includes the sign of the Moon (emotions), the Ascendant (first impression) and the positions of the other planets.
That's why a person may "not seem like an Aries": they have an Aries Sun, a Cancer Moon and a Libra Ascendant, and what comes across is nothing like a Martian manner. Horoscopes in the media work only with the Sun sign, hence the feeling that they aren't about you.