Simha

Simha is the fifth rashi, the Vedic sign of the lion, corresponding to Leo. In jyotisha it is the only sign ruled by the Sun (Surya). Its quality is fixed (sthira), and its element is fire (agni tattva). Jyotisha reads Simha through the Sun's sovereignty and the lion's pride: authority, dignity, self-expression, and the will to lead and be seen. As a sidereal sign it is anchored to the fixed stars and sits roughly 24 degrees behind tropical Leo, so the royal star Regulus, at the lion's heart, falls near the start of sidereal Simha. The Sun's sole rulership of the lion is shared with Western astrology. Jyotisha places particular weight on the Sun here as the significator of the soul, the father, and status.

Simha, lion, is a direct translation of the Greek leon, arriving in Sanskrit through the Yavanajataka, a versification of a Greek astrological text of roughly the second through fourth centuries CE, itself built on the older twelve-sign scheme Babylonian celestial divination had fixed by roughly the fifth or fourth century BCE; no twelve-sign zodiac of any kind is attested anywhere in the earlier Vedic corpus. The Sun's sole rulership of Simha, one of only two signs any planet governs alone alongside the Moon's rulership of Karka, belongs to a later classical layer of the tradition, standardly credited to compilations such as the Brihat Parashara Hora Shastra of roughly the seventh or eighth century CE, whose ascription to the sage Parashara is itself a later, pseudepigraphic attribution rather than the work of a single historical author.

Sources Brihat Parashara Hora ShastraSage Parashara (attributed) with The Yavanajataka of SphujidhvajaDavid Pingree, Jyotihsastra: Astral and Mathematical LiteratureDavid Pingree

Surya, the Sun, owns Simha, and it is the only sign he owns. The house occupied by Simha in any chart is therefore read through the Sun's condition, and the Sun's single lordship gives that reading a directness the double-ruled signs do not have.

Like Mithuna, Dhanu and Kumbha, Simha carries neither an exaltation nor a debilitation. No graha rises to its highest dignity here and none falls to its lowest. A planet in Simha is judged by other means: by whether it is friendly or hostile to the Sun, by the house Simha occupies, by aspect, and by the divisional charts. The friendship reckoning matters more in Simha than in most signs precisely because the sign's dignity scheme is empty, so the relation of the visiting planet to the owner does more of the work.

Three nakshatras cross the sign. Magha and Purva Phalguni lie wholly within it, and the first quarter of Uttara Phalguni falls at its end before the remaining three quarters pass into Kanya. Their vimshottari lords are Ketu, Shukra and Surya in that order, so the sign begins under the shadow graha, passes through Venus and ends under the Sun's own mansion. Magha is one of the nakshatras associated in the classical literature with ancestry and inherited standing, and it sits at the very start of the Sun's sign; the placement is frequently remarked on and is one reason early Simha is read differently from late Simha.