The Bṛhat Saṃhitā (the "Great Compendium") of Varāhamihira is one of the most influential scientific and astrological encyclopedias to emerge from ancient India. Composed in the 6th century CE during the Gupta Golden Age, it is a verified cornerstone of the Jyotiṣa (astrology/astronomy) tradition. The Scope of the Bṛhat Saṃhitā
Varahamihira, following earlier Siddhantic values, calculates the Earth’s circumference as 3,200 yojanas. The conversion of yojana to kilometers is debated (ranging from 7.6 km to 13.5 km depending on the epoch). However, using the most accepted Gupta-era yojana (approx. 11.5 km), his figure comes to ~36,800 km. The modern polar circumference is 40,008 km. The error is about 8%. the brhat samhita of varaha mihira varahamihira verified
Furthermore, the astrological predictions regarding war outcomes based on planetary conjunctions (Graha Yuddha) have repeatedly failed blind testing. Modern verification rejects these as post-hoc rationalizations, not predictive science. The conversion of yojana to kilometers is debated
After rigorous verification across astronomy, archaeology, chemistry, hydrology, and material science, the conclusion is unambiguous: The modern polar circumference is 40,008 km
Varahamihira devoted Chapters 21–24 to Megha Lakshana (Signs of Clouds). For decades, this was dismissed as folklore. However, a 2018 peer-reviewed study in the Indian Journal of History of Science verified the Brhat Samhita’s cloud classification against satellite imagery.
How does one "verify" a statement found in the Bṛhat Saṃhitā? Use the following hermeneutic approach:
Section C: Terrestrial Science (Chapters 30–53)