alan friedman
Image taken:
Sep. 23, 2008
my backyard in Buffalo, NY
This image is captured with a specialized filter (loaned to me courtesy WNY astronomer Dennis Zywiczynski) that passes light from a narrow band in blue/violet end of the spectrum centered on the CaH wavelength (396.8 microns). Tiny sunspot group 1002 was kind enough to appear and pose for this first light image.
©2013, -- This site is penned daily by Dr. Tony Phillips.