A birth chart — sometimes called a Kundali or natal chart — is a map of exactly where the sun, moon and planets were positioned at the moment you were born, seen from the place you were born. It's the starting point for almost every astrological reading, so understanding the basics makes any consultation more useful.
Sun, moon and rising: the three you'll hear most
Your sun sign is the one most people already know — it's based on your birth date alone, and it broadly describes your core identity and the person you're growing into.
Your moon sign needs your birth time, not just your date, and it describes your emotional instincts — how you react before you've had time to think. Many people find their moon sign feels more "like them" than their sun sign does.
Your rising sign (or ascendant) is based on your exact birth time and location, and it describes how you tend to come across to other people — often quite different from how you feel on the inside.
Houses and planets
Beyond the three big signs, a full chart is divided into twelve houses, each governing a different area of life — career, relationships, home, health and so on — and each planet sitting in a house tells an astrologer something about how that area of your life tends to play out.
This is why two people born on the same day can get very different readings: the moon, rising sign and house placements are all different unless you were also born at the same time, in the same place.
Why it matters for a consultation
When you talk to an astrologer on AstroNira, your birth details feed directly into this chart — it's what lets the AI generate an initial, personalised read before the astrologer even joins the conversation, and it's what the astrologer is actually looking at while they talk to you.