An early prototype of the "Saptarishi" concept may stem from the six families associated with the six "Family Books" in the Rigveda Samhita (Mandalas 2–7 in ascending order: Gṛtsamāda, Viśvāmitra, Vāmadeva, Atri, Bharadvaja, Vasiṣṭha). While not a "Family Book", Mandala 8 is mostly attributed to Kaṇva, who could be considered the 7th prototypical Saptarishi.
The earliest formal list of the seven rishis is given by Jaiminiya Brahmana 2.218–221: Agastya, Atri, Bhardwaja, Gautama, Jamadagni, Vasistha, and Vishvamitra followed by BrihadaranyakaUpanisad 2.2.6 with a slightly different list: Atri, Bharadvaja, Gautama, Jamadagni, Kashyapa, Vasistha, and Vishvamitra. The late Gopatha Brahmana 1.2.8 has Vasistha, Vishvamitra, Jamadagni, Gautama, Bharadvaja, Gungu, Agastya, and Kashyapa.
In post-Vedic texts, different lists appear; some of these rishis[2] were recognized as the 'mind-born sons' (Sanskrit: मानस पुत्र, manasaputra) of Brahma, the representation of the Supreme Being as Creator. Other representations are Maheshvara or Shiva as the Destroyer and Vishnu as the Preserver. Since these seven rishis were also among the primary eight rishis, who were considered to be the ancestors of the Gotras of Brahmins, the birth of these rishis was mythicized.
A manvantara (age of Manu) is a unit of time within a kalpa (day of Brahma). There are fourteen manvantaras in a kalpa, each separated by sandhyas (connecting periods). Each manvantara is ruled by a different Manu, with the current seventh one ruled by Vaivasvata Manu. Rishis and their sons are born anew in each manvantara.[3][4][5][6][7][8]
In Jainism it is stated that, "Once at Mathura situated in Uttar Pradesh seven Riddhidhari Digamber saints having 'Aakaashgamini Vidhya' came during the rainy season for chaturmaas whose names were 1.) Surmanyu, 2.) Shrimanyu, 3.) Shrinichay, 4.) Sarvasundar, 5.) Jayvaan, 6.) Vinaylaala and 7.) Jaymitra. They all were sons of King Shri Nandan of Prabhapurnagar and queen Dharini. Shri Nandan king took diksha becoming shishya of Omniscient Pritinkar Muniraaj and attained salvation. Because of great tapcharan of these seven digamber munis the 'Mahamaari' disease stopped its evil effect and they all gained the name as 'Saptrishi'. Many idols of these seven munis were made after that event by King Shatrughna in all four directions of the city."
In ancient Indian astronomy, the pattern of stars known in North America as the Big Dipper and elsewhere in the West as the Plough, or the Great Wagon, (part of the larger constellation of Ursa Major) is called Saptarshi, with the seven stars representing seven rishis: Vashistha, Marichi, Pulastya, Pulaha, Atri, Angiras and Kratu. A faint companion star near Vashistha, known as Arundhati, is identified with Vashistha’s wife. Together, Vashistha and Arundhati correspond to the double star system Mizar and Alcor.[12]
In Hindu astronomy, the seven stars of the Saptarshi Mandala, or Big Dipper are called:
↑Doniger, Wendy; Hawley, John Stratton, eds. (1999). "Merriam-Webster's Encyclopedia of World Religions". Merriam-Webster. Merriam-Webster, Incorporated. p.691 (Manu). ISBN0877790442. a day in the life of Brahma is divided into 14 periods called manvantaras ("Manu intervals"), each of which lasts for 306,720,000 years. In every second cycle [(new kalpa after pralaya)] the world is recreated, and a new Manu appears to become the father of the next human race. The present age is considered to be the seventh Manu cycle.
↑Gupta, S. V. (2010). "Ch. 1.2.4 Time Measurements". In Hull, Robert; Osgood, Richard M. Jr.; Parisi, Jurgen; Warlimont, Hans (eds.). Units of Measurement: Past, Present and Future. International System of Units. Springer Series in Materials Science: 122. Springer. pp.7–8. ISBN9783642007378. Paraphrased: Mahayuga equals 12,000 Deva (divine) years (4,320,000 solar years). Manvantara equals 71 Mahayugas (306,720,000 solar years). Kalpa (day of Brahma) equals an Adi Sandhya, 14 Manvantaras, and 14 Sandhya Kalas, where 1st Manvantara preceded by Adi Sandhya and each Manvantara followed by Sandhya Kala, each Sandhya lasting same duration as Satya yuga (1,728,000 solar years), during which the entire earth is submerged in water. Day of Brahma equals 1,000 Mahayugas, the same length for a night of Brahma (Bhagavad-gita 8.17). Brahma lifespan (311.04 trillion solar years) equals 100 360-day years, each 12 months. Parardha is 50 Brahma years and we are in the 2nd half of his life. After 100 years of Brahma, the universe starts with a new Brahma. We are currently in the 28th Kali yuga of the first day of the 51st year of the second Parardha in the reign of the 7th (Vaivasvata) Manu.
↑Krishnamurthy, V. (2019). "Ch. 20: The Cosmic Flow of Time as per Scriptures". Meet the Ancient Scriptures of Hinduism. Notion Press. ISBN9781684669387. Each manvantara is preceded and followed by a period of 1,728,000 (= 4K) years when the entire earthly universe (bhu-loka) will submerge under water. The period of this deluge is known as manvantara-sandhya (sandhya meaning, twilight).
↑Wilkins, William Joseph (1913) [1882]. Hindu Mythology, Vedic and Purānic (3rded.). Calcutta: London Missionary Society. p.365. In each Manvantara (period of a Manu), seven Rishis, certain deities, an Indra and a Manu, and the kings, his sons, are created and perish.
↑Shankar, P.N (1 January 1985). A guide to the night sky(PDF). Bangalore: Karnataka Rajya Vignana Parishat. Archived(PDF) from the original on 25 June 2021. Retrieved 5 March 2019.
