"Sun spots with opposite Magnetic Poles and showing opposite rotation"

A beautiful image by George Ellery Hale (1868 – 1938), an American astrophysicist, best known for his discovery of magnetic fields in sunspots, and as the leader or key figure in the planning or construction of several world-leading telescopes. In 1908, he used the Zeeman effect with a modified spectroheliograph to establish that sunspots were magnetic.

A scientific image with beautiful abstract quality.

Vintage gelatine silver print with original retouching in the centre of the image.
Titled on the verso "R.A.S. No 250. Sun-spot Vortices, 1908, Oct. 7. G. E.Hale" Notations in pencil and stamped "1738" on the verso.

ca. 19,3 x 14,7 cm