How to read your birth chart

Start with correct birth details

Read each planet as a function, its sign as the style of that function and its house as the area of life it acts in. Start with the Sun, Moon and Ascendant, then use aspects to connect them.

Before any of that, confirm the birth date, local clock time and town. Places with the same name can have different coordinates or time zones, so pick the matching region and country in the place results.

Use the time written in the birth record. Astriel applies the historical time zone for the selected place, including daylight saving changes. You don't need to convert the time to UTC yourself.

If the time is unknown, select Unknown. An invented time would make the Ascendant and houses look more certain than they are. You can still read the planetary placements you have.

• Open the birth chart calculator

What the Sun, Moon and rising sign each describe

The Sun describes your purpose and the qualities you want to express. A Virgo Sun reads through usefulness and attention to detail. Improving a piece of work can be a source of pride, while constant correction can make finishing hard.

The Moon describes emotional needs and familiar responses. A Gemini Moon processes feelings through conversation. Talking about a hard day can help you name the feeling, though explaining it can also delay feeling it.

The Ascendant is the degree rising on the eastern horizon at birth. Its sign describes how you approach new situations and how you first present yourself. It also starts the first Placidus house, so an accurate birth time matters.

These are astrological readings, not measurements of personality. Read them together, because what you want to accomplish can differ from what helps you feel comfortable. If the result lists 2 possible Moon signs, keep both until better time information settles it.

• See your Sun, Moon and rising sign

Combine the planet, sign and house

A planet names the function you're reading. Its sign shows how that function is expressed. The house adds the area of life where it applies.

Take a Sun in Virgo in the second house. The Sun is purpose, and Virgo adds careful improvement. In the second house, that combination applies to earning, possessions and personal values.

One reading is pride in building a useful skill that supports an income. The tension is tying self-worth to productivity or earnings. A second-house placement can't tell you how much someone earns.

Move that Sun into the first house and the topic shifts to identity and personal initiative. Attention to detail becomes part of how you introduce yourself or start a project. The sign stays the same, and the house changes where you apply it.

• How the 12 houses work
• The Sun in Virgo

Read the degree beside the sign

A sign is a 30-degree section of Astriel's tropical zodiac. The degree tells you where a body sits inside it, so 12 degrees of Taurus means 12 degrees into Taurus.

Two bodies can share a sign and still sit far apart. An aspect calculation uses their angular separation and doesn't treat every pair in one sign as equally close.

With an uncertain birth time, Astriel can show a range instead of one degree. Keep that range in your notes and comparisons. Picking the middle value would hide the uncertainty.

Check the house system

Astriel uses Placidus by default. Each house begins at a calculated cusp and ends at the next one. Find the planet's degree between those boundaries to place it in a house.

The Ascendant starts the first Placidus house, and the Midheaven starts the tenth. Houses can span parts of several signs, so your rising sign alone can't fix a planet's house.

Another house system can put a planet in a different house. Before comparing calculators, match the birth details and zodiac, then check the house system. Whole Sign remains an explicit alternative, and the result labels the selected method.

• Astriel's calculation methods

Use aspects to connect placements

An aspect is an angle between 2 chart factors. The result names it and gives its orb, the distance from the exact angle. A smaller orb means a closer geometric match.

A square is exact at 90 degrees. If 2 factors are 92 degrees apart, the orb is 2 degrees. That's an arithmetic example, not a placement from your chart.

A close angle doesn't measure how strongly you'll feel something. Read it in context, with the other placements that support or complicate the theme. Don't turn one aspect into a prediction about a relationship or event.

When your Sun and Moon want different things

A Virgo Sun and a Gemini Moon pull toward different priorities in the same chart. The Sun values careful completion, while the Moon wants conversation and variety. You might love mastering a skill and still need frequent changes of activity to stay engaged.

A good reading explains how both needs live together. It also checks the houses and any calculated aspects, which add context. Sign names alone don't make an aspect, so check the degrees in the result.

Test the reading against specific experiences, including ones that contradict it. Accurate coordinates don't prove a personality claim. If your birth time is uncertain, use the signs and aspects you have without adding missing houses.

• Read a chart without a known birth time