AR11040: CaK and White Light

CaK Sun
CaK AR11040 – January 14, 2010

White Light Sun
White Light AR11040 – January 14, 2010
Sketches and Details by Stephen W. Ramsden

Object Name AR11040
Object Type Solar Active Region and related Sunspots
Location Atlanta, GA –Jon Wood Observatory
Date 14 Jan 2010

The purple image is my interpretation of the Calcium K Line emissions from AR11040
The tan image is my sketch of the remaining Sunspot Group 1040 seen in white light
Conte chalks, pastels/Artagain paper, LUNT Solar Systems B1800 Cak Filter module on an Explore Scientific 127mm ED refractor.
I would strongly encourage all the solar photographers out there to give sketching a try. It gives you unique insights that cannot be caught on film. Thanks Stephen Ames and Erika for inspiration.

Stephen W. Ramsden
www.charliebates.org