Selenarium · Astrology
Natal chart online
The sky at the exact minute you drew your first breath. It is yours alone: even someone born the same day has another sky, another minute, another city. I calculate it free.
What the natal chart shows
The natal chart is the blueprint of the sky at the moment of birth. The planets spread across the twelve signs of the zodiac and the twelve houses, and the angles between them form the aspects.
The ascendant
The sign that was rising over the eastern horizon the minute you were born. It changes every two hours or so, which is why the exact time is needed: an hour off carries it into the next sign.
The houses
Twelve sectors of the chart, each an area of life. By default I divide by Placidus, the most used. You can choose whole signs or equal houses. Beyond the polar circle Placidus does not apply, and there I switch honestly to whole signs instead of drawing the impossible.
The aspects
The angles between planets: conjunction, sextile, square, trine, opposition. They show how the parts of the chart speak to one another.
The twelve houses of the chart
The houses are twelve sectors of the chart, and each one covers an area of life. A planet that lands in a house colours exactly that sphere. Here is what each one holds.
- I · self
- body, character, looks, first impression
- II · money & values
- income, belongings, self-worth, what you value
- III · communication
- speech, study, mind, siblings, short trips
- IV · home & roots
- family, parents, house, childhood, inner ground
- V · love & creativity
- romance, children, art, pleasure, risk
- VI · work & health
- routine, habits, service, the body and its order
- VII · partnership
- marriage, alliances, partners, open rivals
- VIII · crisis & depth
- shared money, intimacy, transformation, what turns everything over
- IX · worldview
- philosophy, faith, far lands, higher learning
- X · career & status
- calling, reputation, the top of the chart
- XI · friends & plans
- groups, kindred spirits, dreams, the future
- XII · the hidden
- subconscious, secrets, retreat, what is concealed
The planets in the chart
The planets are the characters of the chart. Each one carries a force in you, and the sign and house it sits in say how and where that force shows.
- Sun
- the core «I», will, life force
- Moon
- feelings, habits, home, inner world
- Mercury
- mind, speech, how you think and talk
- Venus
- love, beauty, money, what draws you
- Mars
- drive, energy, desire, how you fight
- Jupiter
- growth, luck, faith, where you expand
- Saturn
- discipline, limits, time, maturity
- Uranus
- change, freedom, the unexpected
- Neptune
- dreams, intuition, illusion
- Pluto
- depth, power, death and rebirth
Aspects: how the planets talk to each other
An aspect is the angle between two planets. It shows whether their forces get along or clash. Five main angles read like this.
- Conjunction · 0°
- merge and act as one force
- Sextile · 60°
- easy support, an opening to take
- Square · 90°
- tension and conflict, a growth point
- Trine · 120°
- harmony and talent, flows easily
- Opposition · 180°
- two forces facing off, seeking balance
House systems: Placidus, equal and whole sign
A house system is the way of slicing the chart into twelve sectors. The planets and signs don't move, only the house borders do, so the same planet can land in different houses. Three systems to choose in the form.
Placidus - the most common: houses of different sizes, tied to the birth time and latitude, set by default. Whole signs - the oldest and simplest: each house equals a whole sign and the first starts at the ascendant's sign. Equal houses - all thirty degrees from the ascendant. At high latitudes Placidus distorts, and there whole signs are the honest choice.
How I calculate your chart
The sky does not ask what you believe. In the minute you drew your first breath, the planets stood where they stood, accurate to a degree. That is what I take: exactly as it was, no rounding, no guesswork.
The birth time I set to how the clocks actually ran that year and in that city. The hands have been moved more than once, and by now no one remembers. That is why under each calculation I note which time zone I used.
Frequently asked
What if I do not know the exact birth time?
Leave 12:00. The planets in the signs barely change, but the ascendant, the MC and the houses will be approximate: they depend on the time directly.
What house systems are there?
Placidus (the default, most common), whole signs and equal houses. If you were born beyond the polar circle, Placidus does not apply and the chart is built by whole signs.
Is the calculation paid?
No, the chart is built free and without sign-up.
You have the blueprint of the sky in front of you. What it says about your life is read sign by sign.
✦ See the 12 signs