Birth chart for Aries
Your Sun in Aries is one placement out of ten. It's the part every Aries shares; the other nine are what make your chart yours. Here's what is fixed, what can vary, and how your birth time decides the rest.
Takes about a minute · birth time optional
What every Aries chart has in common
The Sun in Aries: a cardinal fire sign ruled by Mars. In 2026 the Sun enters Aries on March 20 at 14:45 UTC and moves into Taurus on April 20; across recent decades the season starts on March 20 or 21 and ends on April 19 or 20, so the boundary days depend on the year and hour.
If your Sun is in Aries, your core identity is built around action. You feel most yourself when you're starting something — a project, a fight, a workout, a brand-new chapter. You hate stagnation more than you hate failure. The slow consensus-building meetings and the relationships that need careful tending? That's not where you shine. You shine in the opening move, the new venture, the moment someone needs to just decide already.
Your fire is direct. You don't manipulate or play long games — when you're angry, people know it; when you love someone, they know that too. This honesty is your gift, but it can also leave a wake. Other people often need more warm-up time than you do. They're not slow; they're processing. Learning to recognise the difference between a healthy pause and a wasted one is one of the great Aries lessons.
Mercury and Venus: the placements that can't wander far
Two planets are tied to the Sun by geometry. Mercury never sits more than about 28° from it, so a Aries Sun always has Mercury in Pisces, Aries, Taurus. Venus stays within about 47°, so it lands in Aquarius, Pisces, Aries, Taurus, Gemini — most often the middle three. That's why Aries think and love in a recognisable handful of styles rather than twelve.
Your Moon: twelve possibilities
The Moon changes sign every two to three days, so it can be anywhere. It is the biggest single reason two Aries feel different from each other. Pick yours:
- Aries Sun, Aries Moonpioneering · direct · brave
- Aries Sun, Taurus Moonsteady · sensual · loyal
- Aries Sun, Gemini Mooncurious · witty · adaptable
- Aries Sun, Cancer Moonprotective · intuitive · loyal
- Aries Sun, Leo Moongenerous · dramatic · loyal
- Aries Sun, Virgo Moonprecise · helpful · analytical
- Aries Sun, Libra Moondiplomatic · aesthetic · fair
- Aries Sun, Scorpio Moonintense · penetrating · loyal
- Aries Sun, Sagittarius Moonadventurous · honest · philosophical
- Aries Sun, Capricorn Moonambitious · disciplined · patient
- Aries Sun, Aquarius Moonoriginal · detached · humanitarian
- Aries Sun, Pisces Moonintuitive · compassionate · dreamy
Birth time: your rising sign and where the Sun sits
At sunrise the Sun is on the horizon, so a Aries born at dawn has Aries rising and the Sun in the 1st house. Every two hours or so the horizon moves one sign along and the Sun climbs one house. This table is a rough guide — the ascendant's speed changes with latitude and season — but it shows why the time matters.
| Born | Rising sign (approx.) | Sun's house |
|---|---|---|
| Around sunrise | Aries rising | 1st house |
| ~2 h after sunrise | Taurus rising | 12th house |
| Late morning | Gemini rising | 11th house |
| Around midday | Cancer rising | 10th house |
| Early afternoon | Leo rising | 9th house |
| Late afternoon | Virgo rising | 8th house |
| Around sunset | Libra rising | 7th house |
| Early evening | Scorpio rising | 6th house |
| Late evening | Sagittarius rising | 5th house |
| Around midnight | Capricorn rising | 4th house |
| The small hours | Aquarius rising | 3rd house |
| Before dawn | Pisces rising | 2nd house |
Common questions
What is a Aries birth chart?
A birth chart is the whole sky at your birth: Sun, Moon, rising sign, all ten planets and the houses they fall in. "Aries birth chart" usually means the chart of someone whose Sun is in Aries — the Sun is one placement out of ten, so two Aries can have very different charts.
Do all Aries have the same chart?
No. They share the Sun in Aries, and their Mercury is always in Pisces, Aries, Taurus, but the Moon can be in any of the twelve signs, the rising sign depends on birth time and place, and the outer planets depend on the year. The shared Sun explains why Aries recognise each other; the rest explains why they are not interchangeable.
When does Aries season start in 2026?
In 2026 the Sun enters Aries on March 20 at 14:45 UTC and enters Taurus on April 20. Across 1980–2030 the start falls on March 20 or 21 depending on the year, so people born on the boundary day should check the exact time.
Do I need my birth time?
For the Sun, Mercury, Venus and the outer planets, no. For the rising sign and houses, yes — they change every two hours or so. The Moon changes sign every two to three days, so a time helps on about one day in three. The free calculator works either way and tells you which parts depend on the time.
See your whole Aries chart
Sun, Moon, rising, every planet and house, and the aspects between them — computed from your birth details, free. Then decide if you want it read.