The text is foundational to the Vedanga discipline of Jyotisha. It is dated to the final centuries BCE. As the text describes rules for tracking the motions of the sun and the moon, its dating in the final centuries BCE seems implausible as the more sophisticated horoscopic astrology and advanced astronomical knowledge possessed by the Indians .. In the Vedanga Jyotisha, Lagadha praises Jyotisha as the crowning subject in the ancillary Vedic studies of human enlightenment.
The Vedanga Jyotisha is available in two recensions: one of 36 verses associated with the Rigveda and another of 45 verses associated with the Yajurveda. There are 29 verses in common.
- Yajus recension, Rk variants and commentary of Somākara Śeṣanāga, edited: Albrecht Weber, Über den Vedakalender Namens Jyotisham, Berlin 1862
- Yajus recension, non-Yajus verses of Rk recension, edited: G. Thibaut, "Contributions to the Explanation of the Jyotisha-Vedánga", Journal of the Asiatic Society Bengal Vol 46 (1877), p.411-437
- Hindi translation: Girja Shankar Shashtri, Jyotisha Karmkanda and Adhyatma Shodh Sansthan, 455 Vasuki Khurd, Daraganj, Allahabad-6.
- Sanskrit Commentary with Hindi Translation: Vedā̄ṅgajyotiṣam: Yajurvedināṃ paramparayāgatam vistr̥tasaṃskr̥tabhūmikayā. On Vedic astrology and astronomy; critical edited text with Hindi and Sanskrit commentaries. By Lagadha, Ācārya-Śivarāja Kauṇḍinnyāyana, SammodavardhanaKauṇḍinnyāyana, Somākara