Leo, called Simha in Sanskrit, is the fifth of the 12 rashis, the zodiac signs of Vedic astrology. It spans 120 to 150 degrees of the sidereal zodiac, the star-anchored zodiac that Jyotish uses. Simha is a fixed fire sign and the only sign ruled by the Sun. Its symbol is the lion, and it maps to the stomach of the Kala Purusha, the cosmic body laid across the sky. No planet is exalted or debilitated here; the sign's strength flows through its solar lord. The classical reading is proud, warm, and generous: wherever Leo falls in a chart, that part of life wants to shine, to lead, and to be seen doing both.
This page goes deep on Simha alone: its keys, its solar lord, its nakshatras, and how it reads as a Moon sign or rising sign. For the system itself, how the 12 signs divide the sky and what elements and modalities mean, start with the guide to the 12 Vedic zodiac signs.
Simha at a glance
The quick facts first, from the standard scheme of the Brihat Parashara Hora Shastra, each unpacked in the sections below.
| Attribute | Simha (Leo) |
|---|---|
| Position | 120°00′ to 150°00′ of the sidereal zodiac |
| Order | 5th of 12 |
| Element (tattva) | Fire (agni) |
| Modality | Fixed (sthira) |
| Ruler | Sun |
| Symbol | The lion |
| Body part (Kala Purusha) | The stomach |
| Polarity | Odd sign, active |
| Exalted here | None of the seven classical planets |
| Debilitated here | None of the seven classical planets |
| Nakshatras contained | Magha, Purva Phalguni, Uttara Phalguni (1st pada) |
The lion, the king of the wheel
Simha means lion, and the sign rules the way the animal does: by presence rather than effort. Leo is the zodiac's royal sign, the place of thrones, courts, stages, and centre-light, and the classics consistently read it through images of kingship, honour, and command.
As the fifth sign, Leo maps to the stomach of the Kala Purusha, the cosmic body. The old physiology placed the digestive fire, agni, at the body's centre, the furnace that turns food into strength, a fitting seat for the zodiac's central fire sign.
The Sun passes through sidereal Leo from about 17 August to 16 September, a day either way depending on the year, the month of Simha Sankranti in Indian solar calendars.
Fixed fire: the two keys to Simha
The classics describe each sign by element and modality. Simha is fire by element, the tattva of will, spirit, and courage, and fixed by modality, the mode that holds and sustains. Fixed fire is the hearth and the throne: flame that does not flicker, heat that can be relied on.
Leo shares the fire element with Aries and Sagittarius, the fire triangle of signs with a natural sympathy for one another. It shares the fixed mode with Taurus, Scorpio, and Aquarius, the four signs of persistence. The combination separates Leo's fire from Aries's: where movable fire ignites and moves on, fixed fire stays, warms a whole hall, and expects the hall to gather round it.
The Sun, the lord of Simha
The ruler of Leo is the Sun, and Leo is the only sign the Sun owns. The two luminaries hold one sign each, the Sun in Leo and the Moon in Cancer, sitting side by side at the zodiac's heart while the other five planets take two signs apiece. The Brihat Parashara Hora Shastra also names Leo as the Sun's mulatrikona, the zone where the planet does its best work.
The Sun in Jyotish is the soul, the king, the father, and the centre that everything else orbits. Its sign inherits the role: Leo is where the zodiac holds court. The Sun placed in its own Leo is a king in his own palace, one of the strongest Sun positions a chart can show, and the Sun's condition in any chart tells you how Leo's territory fares.
Which planets are strong or weak in Leo?
Leo hosts neither an exaltation nor a debilitation among the seven classical planets. Like Gemini, it is a sign where no planet has a special point of strength or fall; the hierarchy here runs entirely through the lord, and the Sun in its own sign is the placement the classics single out.
Visiting planets take the throne room on their own terms. Mars, a natural friend of the Sun, fights well in Leo and gives the courage of command. Jupiter teaches from the seat of honour and inclines to wise counsel. Saturn, the Sun's natural adversary in the planetary relationships, finds the sign's demand for display foreign to its quiet nature, and charts with Saturn in Leo tend to earn their authority slowly, through endurance rather than charisma. None of this is exaltation or fall, only the chemistry of guest and host.
The nakshatras inside Leo
A little over two nakshatras, the 27 lunar mansions, fit inside every sign. Leo contains the whole of Magha, the whole of Purva Phalguni, and the first quarter of Uttara Phalguni. A planet in Leo always occupies one of these three, and the nakshatra refines the sign-level reading.
| Nakshatra | Degrees of Leo | Nakshatra lord |
|---|---|---|
| Magha | 0°00′ to 13°20′ | Ketu |
| Purva Phalguni | 13°20′ to 26°40′ | Venus |
| Uttara Phalguni (pada 1) | 26°40′ to 30°00′ | Sun |
The lineup deepens the royal theme. Magha, whose symbol is a throne and whose deities are the ancestors, opens the sign with inherited dignity. Purva Phalguni, ruled by Venus, brings the court's pleasures: art, rest, romance, and celebration. Uttara Phalguni, the star of contracts and lasting bonds, begins in Leo's final degrees and carries into Virgo. Full profiles are linked from the 27-nakshatra map.
Leo as a Moon sign
In everyday Vedic practice your rashi means your Moon sign, and a Leo Moon describes a mind with royal instincts. Self-respect is the organising principle: this inner life needs a domain to preside over, work or family or craft, and it measures days by whether honour was kept.
The Brihat Jataka sketches the Leo Moon as proud, generous, resolute, ambitious, and warm to everyone who shows respect. The vulnerabilities are the same traits under pressure: pride can bruise easily, generosity can need an audience, and criticism can land as insult. The traditional counsel gives the fire a hearth: real responsibility, honestly earned, settles a Leo Moon the way nothing else does, and the chart's Sun shows how readily that security comes.
Leo rising, and the sign opposite
If Leo was rising in the east at your birth, it is your lagna, or rising sign, and the Sun rules your chart, making its placement the chart's keystone. The classical sketch of a Leo lagna is a dignified, big-hearted, commanding person who is at their best with something worthy to lead.
Across the wheel sits Aquarius, and the axis between them runs from the one to the many: Leo holds the sovereign individual, Aquarius the assembly. Opposite signs complete each other, so the Leo chart matures by borrowing Aquarius's detachment, learning that the crown serves the crowd and shines no less for it.
Whether Leo holds your Moon, your lagna, or a single planet decides how much of this page is yours. A free birth chart shows every placement, and the neighbouring profiles of Cancer and Virgo show the wheel turning from feeling to fire to precision across three signs.