The navagraha (Sanskrit: नवग्रह, literally "nine planets") are a group of nine celestial bodies and associated deities that, according to Hindu tradition, are believed to influence human life on Earth. The term is derived from the Sanskrit words nava, meaning "nine", and graha, which carries the senses of "planet" as well as "seizing", "laying hold of" or "holding". The composite term thus reflects both an astronomical category and a theological idea: that these bodies have a grasp upon the lives, fortunes and dispositions of beings on Earth.
The nine constituents of the navagraha are the Sun, the Moon, the planets Mercury, Venus, Mars, Jupiter and Saturn, and the two nodes of the Moon. Together they form a recognisable group across Hindu ritual, iconography, calendrical reckoning and astrological practice. Most Hindu temples around the world include a designated space dedicated to the worship of the navagraha, typically arranged according to a prescribed configuration.
The conception of the navagraha brings together earlier observational and devotional strands. The word graha is older than its current astronomical sense; its root meaning of "seizing" or "holding" reflects the belief that these bodies could exert influence upon human destinies, and were therefore worthy of propitiation. Over time, the term came to designate the heavenly bodies themselves, considered both as physical objects in the sky and as deities.
The term "planet" was applied originally only to the five planets visible to the naked eye, that is, Mercury, Venus, Mars, Jupiter and Saturn, and excluded the Earth. The category was later generalised, particularly during the Middle Ages, to include the Sun and the Moon, sometimes referred to as the "lights", giving a total of seven planets. To these seven, Hindu tradition adds the two lunar nodes—the points at which the Moon's path intersects the apparent path of the Sun—bringing the count to nine. The inclusion of the lunar nodes distinguishes the Indian scheme from several other classical systems that retained only seven bodies.
The seven days of the week of the Hindu calendar correspond to the seven classical planets, a pattern shared with European culture, which followed the same set of patrons. The days are accordingly named after these bodies in most languages of the Indian subcontinent. This correspondence underscores the deep integration of the planetary scheme into everyday timekeeping in addition to its ritual role.
Within Hindu tradition, each of the navagraha is associated with a deity, an iconographic form, and a body of ritual practice. The Sun (Surya) and the Moon (Chandra) head the group as the two luminaries; Mercury (Budha), Venus (Shukra), Mars (Mangala), Jupiter (Brihaspati) and Saturn (Shani) form the planetary core; and the two lunar nodes—commonly referred to in Indian texts as Rahu and Ketu—complete the set. The grouping appears in temple sculpture, painted manuscripts, ritual diagrams and devotional literature.
In temple architecture, the navagraha are usually installed together on a raised platform, often within or near the main shrine complex. Devotees circumambulate the arrangement and may offer prayers to one or more of the bodies depending on personal practice or astrological considerations. The placement and orientation of the figures is governed by traditional iconographic conventions, which assign each graha a specific direction, posture, vehicle and set of attributes.
The navagraha also occupy a central position in Hindu astrology (jyotisha), in which the positions of the nine bodies at the time of birth are held to indicate aspects of an individual's character and life experience. Ritual remedies, recitations and offerings associated with the navagraha are performed in many households and temples, and remain a visible part of contemporary Hindu religious life. The two lunar nodes, although not physical bodies in the same sense as the planets and luminaries, are treated within the system as full members of the group, with their own iconography, mythology and ritual procedures.
The navagraha appear in classical Sanskrit texts dealing with astronomy, astrology, ritual and mythology, and have been depicted across a wide variety of regional artistic traditions in the Indian subcontinent. Variations exist in the order in which the bodies are listed, the directions they are assigned, and the specific rituals associated with them, reflecting the diversity of practice across different schools and regions.
The navagraha hold a distinctive place at the meeting point of religion, astronomy and daily life. As deities, they are objects of devotion and ritual; as celestial bodies, they form part of the observational foundation of Indian astronomy; and as patrons of the days of the week, they are embedded in the calendrical vocabulary of much of the Indian subcontinent. The shared pattern of weekday naming with European traditions points to a wider classical heritage in which the same set of seven bodies served as time-markers across cultures.
The presence of a designated navagraha shrine in most Hindu temples across the world reflects the continuing importance of the group in lived religious practice. Beyond the temple, the navagraha also appear in domestic rituals, life-cycle ceremonies and astrological consultations. Their iconographic depictions—often as a set of nine figures arranged in a square or other prescribed pattern—have contributed to the visual vocabulary of Hindu art.
The conceptual breadth of the term graha, encompassing both the astronomical sense of "planet" and the older sense of "that which seizes", captures the dual character of the navagraha as natural phenomena and as agents understood within a religious worldview. This duality has allowed the system to remain relevant in changing intellectual contexts, accommodating both ritual devotion and engagement with astronomical knowledge.