Planet Combustion
- gagan deep
- Sep 11, 2025
- 2 min read
Updated: Sep 14, 2025

In astrology, a planet is said to be combust when it comes too close to the Sun in the sky. The Sun’s brightness overpowers it, making the planet "invisible". Astrologically, this weakens the planet’s energy and can cause frustration, pressure, or ego-related issues in the areas that planet rules.
General Rule for Combustion
Too close to Sun = weakened planet
Each planet has a different degree of combustion (how close it has to be to the Sun to be combust).
The Moon is never combust (it has its own phases instead).
Rahu & Ketu cannot be combust (they are shadow planets).
Effects of Each Planet When Combust
☿ Mercury Combust
Effects: Trouble expressing thoughts, mental restlessness, ego in communication, nervous speech.
When combust: Within ~12° of the Sun.
♀ Venus Combust
Effects: Struggles in love, vanity, ego in relationships, loss of charm or diplomacy.
When combust: Within ~10° of the Sun.
♂ Mars Combust
Effects: Angry outbursts, ego-driven actions, lack of patience, impulsive energy.
When combust: Within ~17° of the Sun.
♃ Jupiter Combust
Effects: Blocked wisdom, inflated ego in beliefs, lack of guidance or overconfidence.
When combust: Within ~11° of the Sun.
♄ Saturn Combust
Effects: Pressure from duties, blocked discipline, ego clash with authority or structure.
When combust: Within ~15° of the Sun.
Planetary Combustion Summary Chart
🌌 Planet | 🔥 Combust When Within | ⚠️ Combustion Effects |
☿ Mercury | ~12° of Sun | Communication blocks, nervousness, mental overload, ego in speech. |
♀ Venus | ~10° of Sun | Love issues, vanity, lack of harmony, ego in relationships or art. |
♂ Mars | ~17° of Sun | Impatience, aggression, ego-driven actions, repressed anger. |
♃ Jupiter | ~11° of Sun | Overconfidence, blocked wisdom, inflated beliefs, misjudgment. |
♄ Saturn | ~15° of Sun | Struggles with discipline, ego vs authority, responsibility pressure. |
🌒 Moon | Not combust | Moon goes through phases, not combustion. |
☊ Rahu / ☋ Ketu | Not combust | Shadow planets – combustion does not apply. |



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