Nakshatra Cluster · Ruling Planet

Ketu-ruled nakshatras, the 7-year group.

Ketu rules three of the 27 nakshatras: Ashwini, Magha, Moola. All three share the 7-year Ketu major period when the natal Moon falls inside them. The macro signature: uprooting, search for essence, the part of the chart that dissolves form to expose root.

The three nakshatras in the group

Nakshatra	Deity	Range	Symbol
Ashwini	Ashwini Kumars	0°00' to 13°20' Aries	horse's head
Magha	Pitris (ancestors)	0°00' to 13°20' Leo	royal throne
Moola	Nirriti	0°00' to 13°20' Sagittarius	bundle of roots

What Ketu's ruling register means

Uprooting, search for essence, the part of the chart that dissolves form to expose root. Ketu-ruled nakshatras inherit this signature at the broad level, then split into three distinct readings by sign placement, presiding deity, and pada structure. The shared element is the 7-year major-period length and the underlying ruling-planet character.

How the three members differ

Ashwini

Ashwini sits at 0°00' to 13°20' Aries with deity Ashwini Kumars and symbol the horse's head. The macro register is swift, healing, pioneering. Read the full deep-dive at Ashwini nakshatra.

Magha

Magha sits at 0°00' to 13°20' Leo with deity Pitris (ancestors) and symbol the royal throne. The macro register is ancestral, regal. Read the full deep-dive at Magha nakshatra.

Moola

Moola sits at 0°00' to 13°20' Sagittarius with deity Nirriti and symbol the bundle of roots. The macro register is root, dismantling. Read the full deep-dive at Moola nakshatra.

What the major period looks like

When the natal Moon falls in any of the three Ketu-ruled nakshatras, the native opens life in the Ketu major period. The 7-year window foregrounds Ketu's karaka register. The nakshatra-specific reading further qualifies the period through the presiding deity and sign placement of the natal Moon.

The Vimshottari sub-period sequence inside the Ketu major period runs through all 9 planets in proportion to their major-period lengths. Each sub-period activates a different karaka combination. The full sub-period structure is covered in the Ketu major-period overview.

What the framework does not predict

The cluster reads structural patterns at the national-chart level and at the cohort level. Group membership does not generate forward calls automatically. Calibration is by chart and signature class. The framework is explicit about this scope limit.

FAQ

How long is the Ketu major period in the Vimshottari sequence?

The Ketu major period runs 7 years. It activates when the natal Moon falls in any of the three Ketu-ruled nakshatras: Ashwini, Magha, Moola. The exact degree of the Moon within the nakshatra fixes how much of the Ketu major period remains at birth.

What is the macro signature of the Ketu-ruled group?

Uprooting, search for essence, the part of the chart that dissolves form to expose root. The three nakshatras differ in deity, sign placement, and pada structure, but share the Ketu major-period length and the broad ruling-planet register.

How do the three Ketu-ruled nakshatras differ?

At the macro level all three carry Ketu's register, but each picks up the qualities of its sign placement and presiding deity. Ashwini (0°00' to 13°20' Aries, Ashwini Kumars) reads as swift, healing, pioneering. Magha (0°00' to 13°20' Leo, Pitris (ancestors)) reads as ancestral, regal. Moola (0°00' to 13°20' Sagittarius, Nirriti) reads as root, dismantling.

Does this group share a major-period firing pattern on the corpus?

The three nakshatras share the Ketu major-period length but do not share calibrated forward-call windows automatically. Calibration is by chart and signature class, not by nakshatra group. Individual nakshatra deep-dives carry the calibrated context where it exists.

Where does the Ketu-ruled group sit in the 120-year cycle?

In the standard Vimshottari sequence the major-period order is Sun, Moon, Mars, Rahu, Jupiter, Saturn, Mercury, Ketu, Venus, then repeating. The Ketu major period therefore enters the sequence whenever the previous major period closes; the entry point on a personal chart depends entirely on the natal Moon nakshatra and degree.