The Sun imaged in Hydrogen-alpha light on July 4, 2010 by Clif Ashcraft. A composite was made from two videos. Exposure of one was optimized for prominences and the second was optimized for the solar disk.
AAI members attending the August 2010 convention. Back row (l-r): Brian McGuinness, Rex Young, John Lowe, Nancy Tuthill. Front row (l-r): Al and Bonnie Witzgall, Brian Lemley, Kevin and Miranda Walsh, Gerry DeLuca, Gabe DeLuca, Melinda Callis, Irene and Richard Greenstein Photo credit: Richard Greenstein
Member George Helmke, left, receiving his Senior Qualified Observer certificate from Al Witzgall, Instrument Qualifications Committee chairman.
The William Miller Sperry Observatory housing the 24-inch Cassegrain reflector and the 10-inch f/15 refractor. Photo by AAI member, Joe Powell.
Tony Sharfman 2011-06-06
Photo of the active Sun taken by Mike Luciuk using a digital camera. The settings were 1/1500 second at ISO 1600, f/15, and 1875mm focal length. It really shows a lot of detail. Notice the faculae around the sunspot groups, especially the one in the upper right corner.