Records reveal Kerala’s forgotten role in mapping magnetic equator
Researchers have unearthed forgotten records on Kerala’s Trivandrum Observatory, revealing it mapped India’s first magnetic equator in 1839 and tracked its southward shift until 1941. Founded in 1836, the observatory under John Caldecott and John Allan Broun also captured precise data on the 1859 Carrington solar superstorm, including a precursor flare, aiding modern space weather forecasts.