Navagraha (collective)

The Navagraha, "nine seizers" or "nine planets," are the nine celestial deities that form the foundational planetary framework of Jyotisha, Vedic astrology, believed to influence human life for good or ill. This entry describes them as a system; each graha also has its own individual profile on this platform.

The nine are Surya (Sun), Chandra (Moon), Mangal (Mars), Budh (Mercury), Brihaspati (Jupiter), Shukra (Venus), Shani (Saturn), and the two lunar nodes, Rahu and Ketu. Rahu and Ketu are distinguished from the other seven as chayagraha, "shadow planets," having no physical body.

Together they are represented in temple architecture through the Navagraha Mandala, a designated shrine, most often a raised platform or small pavilion holding nine images or emblems arranged around a central Surya, found in the majority of Hindu temples across India as a distinct point of worship separate from the temple's main deity.

Their conceptual roots lie in the earliest Vedic literature, where the Rigveda and Atharvaveda already treat the Sun, Moon and certain stars as cosmic forces affecting the earth, though not yet as a fixed group of nine. Rahu and Ketu, understood as the severed head and body of the slain asura Svarbhanu, were integrated only gradually as full members of the group, becoming firmly established as chayagrahas alongside the seven visible bodies by around the eighth or ninth century CE.

Each graha carries its own genealogy (detailed in their individual profiles), but as a set they are understood collectively as the planetary forces whose positions at a person's birth are read in the birth chart (janma kundali) to determine character and destiny.

Nearly every Hindu temple maintains a Navagraha shrine, and devotees perform specific pujas and donations to particular grahas, especially Shani, Rahu and Ketu, to ease difficult planetary periods; each graha is also associated with a day of the week and specific life domains in Jyotisha practice.

The Navagraha Mandala is a near-universal feature of temple architecture across India, though its placement, prominence and the specific rituals performed at it vary between North and South Indian temple traditions and between individual sampradayas.