
Active Region (AR) 1602 (center left) and AR 1599 (lower right) sunspot groups taken using a 4-in f/9 refractor, neutral density (ND) 3.0 Baader solar filter, and a Canon 450D DSLR camera. 1/4000 sec exposure, ISO 100, November 3, 2012, Camarines Norte, Philippines. Photo Credit: Anthony Urbano
Related link: Sun and Sunspots









