Colorful Solar Activity | Mikael Svalgaard

Mikael Svalgaard
Location of photo
Mallorca, Spain
Date/Time of photo
July 11, 2012
70mm f/6 ED refractor, Coronado SM60 H-alpha filter, 4x Televue Powermate, Skynyx 2-2M camera
Active region 1520 displayed was one of the biggest sunspots in this solar cycle. Here it is imaged with a novel technique where three images made at slightly different wavelengths through a H-alpha filter are used as seperate RGB channels. This week I am blogging daily about this technique which anyone with a tunable solar H-alpha filter can use to make more colorful images of the Sun.