Solar Activity, 2004.08.16


2004.08.16 UT 19:26 - Sunspot groups. 1/400 sec exposure, Canon 300D, 90mm Maksutov (f/5.6, FL = 500mm).

2004.08.16 UT 19:11 - Sunspot group 656. 1/400 sec exposure, Canon 300D, 300mm SCT stopped down to 100mm (f/30, FL = 3000mm).

2004.08.16 UT 19:13 - Sunspot group 661. 1/400 sec exposure, Canon 300D, 300mm SCT stopped down to 100mm (f/30, FL = 3000mm).
©2004 Chris L Peterson