Pillar article
Sun, Rahu, and Ketu Dashas
Sun, Rahu, and Ketu are not one dasha. Each has its own length, and the lord that follows each of them is different.
Three lengths, three successors
The Sun's mahadasha lasts 6 years, and the next lord is the Moon for 10. Rahu's mahadasha lasts 18 years, and the next lord is Jupiter for 16. Ketu's mahadasha lasts 7 years, and the next lord is Venus for 20. People bundle Sun, Rahu, and Ketu because all three can feel harsh, and because Rahu and Ketu eclipse the Sun. The bundle is not a period in the 120-year sequence. You are never in Sun-Rahu-Ketu dasha as a single lord.
The Sun's antardashas run Sun, Moon, Mars, Rahu, Jupiter, Saturn, Mercury, Ketu, Venus. Rahu does appear inside the Sun's 6 years as one slice. That slice is not the 18-year Rahu mahadasha.
What each one actually spends
The Sun spends status, the father, authority, and the houses the Sun rules. For Leo lagna that includes the person. For Aries lagna the Sun rules the 5th. Rahu spends appetite and the unusual path through the house it occupies, for 18 years. Ketu spends severance through its house, for 7 years, with Rahu always opposite.
A Sun conjunct Rahu will be activated by both the 6-year Sun period and the 18-year Rahu period, years apart. That is a conjunction touched twice, not a fused dasha. Ketu will touch the opposite sign on its own 7-year turn.
Eclipse talk stays with the nodes
Rahu and Ketu are the eclipse points. The Sun's nature is separative and hot even when no node joins it. Calling every difficult year a Sun-Rahu-Ketu dasha hides whether the lord is the 6-year king, the 18-year node, or the 7-year node. The remedy, the gem, and the house you watch all change with that answer. Ruby belongs to the Sun, hessonite to Rahu, cat's eye to Ketu. Strengthening all three because the phrase named them is how remedies contradict each other.
Name the mahadasha from the Moon's nakshatra balance, then stop combining the labels.
Frequently asked questions
Is there a Sun-Rahu-Ketu mahadasha?
No. The Sun lasts 6 years and is followed by the Moon. Rahu lasts 18 and is followed by Jupiter. Ketu lasts 7 and is followed by Venus.
Does Rahu appear inside the Sun period?
Yes, as one antardasha inside the Sun's 6 years. That slice is much shorter than Rahu's own 18-year mahadasha.
Which gem matches which of the three?
Ruby for the Sun, hessonite for Rahu, and cat's eye for Ketu. They are not one prescription.
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D1, D9, D10, dashas, yogas, and transits, the same calculations referenced in this article.