Hale (hâl), George
American astrophysicist who invented the spectroheliograph (1891) and directed the Mount Wilson Observatory (1904-1923).
Hale, George Ellery
Hale, George Ellery (1868-1938),
American astronomer, born in Chicago. In 1889 Hale invented the spectroheliograph,
a device used to study the surface of the sun.
In 1908 he discovered that sunspots have magnetic fields. Hale conceived
and helped design the first giant reflecting telescope, an instrument installed
at Mount Palomar Observatory near San Diego, California, in 1948. It was
named the Hale Telescope in his honor.