Discovered as early as 200 BC by Chinese astrologers, they are currently examined using the magnetograph invented in 1948 by American astrologer Horace W. Babcock. Gustav Kirchhoff linked them to grad
Discovered as early as 200 BC by Chinese astrologers, they are currently examined using the magnetograph invented in 1948 by American astrologer Horace W. Babcock. Gustav Kirchhoff linked them to gradations in the Fraunhofer spectrum, but they are understood today as areas of turbulence in the supergranulated topology of Sol. FTP, name the areas of high magnetic activity which appear in a 22-year cycle.
Discovered as early as 200 BC by Chinese astrologers, they are currently examined using the magnetograph invented in 1948 by American astrologer Horace W. Babcock.