Term
Combustion (Asta)
A planet is combust when it travels too close to the Sun and its light is swallowed: its significations weaken, acting from under the ruler's glare ra...
A planet is combust when it travels too close to the Sun and its light is swallowed: its significations weaken, acting from under the ruler's glare rather than on their own authority. Think of the Sun as the king and the combust planet as a courtier standing too near the throne — present, even close to power, yet unable to shine in its own right; its voice is there but muffled, its matters lived more inwardly than shown to the world. The themes of that planet seldom vanish — often they are felt intensely and personally, bound up with the ego and the sense of self — but they can be hard to express outwardly, or come into their own only after a long, private effort to reclaim them from the Sun's brightness. Closeness decides the depth: the nearer the exact meeting, the deeper the eclipse, while a planet just past the Sun is already recovering its light. Not every case weighs the same — Mercury and Venus never stray far from the Sun and are combust often, so for them it is less remarkable, and a retrograde planet tends to bear the burning more lightly. Read combustion, then, not as a planet destroyed but as one asked to work quietly, from within, until the self learns to let it speak.
Each graha has its combustion orb — wider or narrower, and different when retrograde; a combust graha is dimmed in its avastha and its bhava promises, the Moon and nodes treated by their own rules.
— Brihat Parashara Hora Shastra asta orbs
The engine applies the classical BPHS orbs with retrograde variants on every production path (engine 1.3.0), nodes keeping a 5° rule; severity is graded and exposed per graha. Combustion downgrades avastha (Vikala/Kopita), qualifies yogas like Budha-Aditya, and enters every karaka condition block.