solar magnetograph
Quick Summary
A solar magnetograph is an instrument used to measure the magnetic field of the Sun. The development of such instruments has been crucial in understanding solar activity. Early advancements in solar observation, like the invention of the spectroheliograph by George Ellery Hale, allowed for the study of the Sun in specific wavelengths. Hale's work also led to the discovery of magnetic fields in sunspots through the Zeeman effect.
Later, in 1953, Harold and Horace Babcock developed the magnetograph, which enabled the detection of the Sun's polar magnetic field. Modern magnetographs, often complemented by other instruments, provide detailed measurements of solar magnetic fields, contributing significantly to our understanding of solar phenomena and their impact on Earth.12
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