What is Planetary Combustion (Asta Graha) in Vedic Astrology? Planetary Combustion (अस्त / Asta)occurs when a planet transits within a specific angular proximity (Diptamsha) of the Sun. Scorched by the Sun's intense rays, the planet loses its outer physical independence, requiring its significations to operate through Sun-like themes of authority, self-reliance, and soul purpose.
Learn exact combustion degree tables (Diptamsha), the Cazimi throne exception (within 0°17'), and Budha-Aditya rules.

Figure 1: Cosmic diagram of Asta (Combustion) — planets entering within the solar corona radius (Diptamsha), expressing energy through the Sun's royal will.
The Sanskrit term Asta (अस्त) translates to "setting" or "disappearing." Just as stars vanish from sight during daytime due to solar glare, a planet coming within a specific angular radius of the Sun loses its visual luminosity and independent agency.
In classical texts like Brihat Parashara Hora Shastra (Chapter 28) and Surya Siddhanta, each planet is assigned a specific combustion threshold (Diptamsha). The closer the planet gets to the exact degree of the Sun, the more severe the combustion.
"A planet that is in combustion (Astangata) loses its potency to deliver good results, akin to a royal servant who cannot speak in the presence of an angry king."
Explore the direct vs retrograde combustion thresholds and key life effects for all six non-solar planets.
Forms Amavasya (New Moon). The Moon loses its reflective light; emotional body becomes restless, introverted, or dependent on paternal figures.
Most commonly combust planet. Forms Budha-Aditya Yoga if beyond 3°. Within 1° (Dagdha), creates hyper-nervous speech or dogmatic arguments.
Causes 'Tara Asta' (evening/morning star disappearance). Delays marriage rituals, suppresses artistic confidence, or creates sacrifice in romance.
Mars possesses the largest combustion orb (17°). Physical courage becomes impulsive, aggressive, or suppressed; energy burns internally as frustration.
Known as Guru Asta. Divine grace and philosophical guidance feel distant. High ego clashes with mentors or delayed childbirth opportunities.
Known as Shani Asta. Saturn's cold discipline is scorched by solar heat. Native struggles with authority figures (bosses/father) or delays in career building.
The planet's external voice is subdued. Its agenda is executed under the direction of the Sun's house and status.
The planet's physical signification is scorched. Native experiences friction, impatience, or blockage in that planet's department of life.
In ancient classical astrology, a planet sitting in the exact heart of the Sun is NOT destroyed; it is crowned by the King! Grants extraordinary genius and royal backing.
Asta refers to the astronomical phenomenon where a planet comes so close to the Sun in degree alignment that its physical light is swallowed by solar brilliance. In Jyotish, a combust planet loses its independent power and must express its energy through the Sun's ego and authority.
Rahu and Ketu are not physical planets; they are mathematical shadow nodes (Chhaya Grahas). Instead of being combusted by the Sun, Rahu and Ketu cause SOLAR ECLIPSES (Surya Grahan) when conjunct the Sun!
No! Mercury is almost always near the Sun (never more than 28° away). Maharshi Parashara notes that Mercury is naturally immune to mild combustion. Budha-Aditya Yoga functions brilliantly unless Mercury is within 3° of the Sun in an inimical sign.
When a planet (like Venus or Mercury) is BOTH retrograde and combust, it is physically closest to Earth (Perigee). While optically hidden behind the Sun, its internal motional strength (Cheshta Bala) is at maximum — making its psychological impact exceptionally deep.
Tara Asta occurs when Jupiter or Venus is combust in the sky. Classical Muhurta texts strictly prohibit performing weddings (Vivah), house warming (Griha Pravesh), or sacred thread ceremonies (Upanayana) during Tara Asta because divine grace and relationship bliss are temporarily unsupportive.
Yes! Wearing the natural gemstone (Ratna) of a combust benefic planet (such as Yellow Sapphire for combust Jupiter, or Emerald for combust Mercury) acts as an optical amplifier, restoring the planet's light frequency into the human aura.
A Dagdha Graha is a planet sitting within 1° to 3° of the Sun. Its physical manifestations (such as 7th lord for spouse) experience high heat, requiring conscious emotional management.
During the Mahadasha of a combust planet, you achieve success through alignment with Sun-related themes — such as working under authority figures, government institutions, or developing strong self-reliance rather than expecting unearned luck.