Vasishtha Siddhanta is one of the earliest astronomical systems in use in India, which is summarized in Varahamihira's Pancha-Siddhantika (6th century). It is attributed to sage

Vasishtha Vasishtha ( sa, वसिष्ठ, IAST: ') is one of the oldest and most revered Vedic rishis or sages, and one of the Saptarishis (seven great Rishis). Vashistha is credited as the chief author of Mandala 7 of the '' Rigveda''. Vashishtha ...

and claims a date of composition of 1,299,101 BCE. The original text probably dated to the 4th century, but it has been lost and our knowledge of it is restricted to Varahamira's account.

Alberuni Abu Rayhan Muhammad ibn Ahmad al-Biruni (973 – after 1050) commonly known as al-Biruni, was a Khwarazmian Iranian in scholar and polymath during the Islamic Golden Age. He has been called variously the "founder of Indology", "Father of Co ...

ascribes the work to Vishnuchandra. There is a modern work bearing the title ''Vasishtha Siddhantika''.

Albrecht Weber Friedrich Albrecht Weber (; 17 February 1825 – 30 November 1901) was a Prussian - German Indologist and historian who studied the history of Jainism in India. Some older sources have the first and middle names interchanged. Weber was born in B ...

, The History of Indian Literature, p. 258; Romesh Chunder Dutt, A History of Civilization in Ancient India, p. 209

References

{{astronomy-stub Hindu astronomy Indian astronomy texts Ancient Indian astronomical worksa