2 "Ficheiro:Sunspot,_March_7-17_1989_(noao-03108).jpg".

Ficheiro:Sunspot, March 7-17 1989 (noao-03108).jpg

of images of the Sun taken during the period March 7-17 1989. This series shows the evolution of a sunspot group as it moves around the Sun. The upper...


Ficheiro:Sunspot, March 7-17 1989 (noao-03108).tiff

of images of the Sun taken during the period March 7-17 1989. This series shows the evolution of a sunspot group as it moves around the Sun. The upper...