Top: Group of sun spots and veiled spots. Observed on June 17th 1875 at 7 h. 30 m. A.M. by E.L. Trouvelot
Bottom: Active Region 1302 (photo by Alan Friedman), which is several times larger than the Earth
Top: Group of sun spots and veiled spots. Observed on June 17th 1875 at 7 h. 30 m. A.M. by E.L. Trouvelot
Bottom: Active Region 1302 (photo by Alan Friedman), which is several times larger than the Earth