The close-up view of huge active region 2192 is a collaboration with Randy Shivak. Randy captured this data with his home built 9" refractor in excellent seeing from his site in Phoenix, AZ.
He shared the raw file and allowed me the privilege of processing this excellent data into the final image above. Some additional photos of this historic sunspot can be seen here.
October 23, 2014
© Alan Friedman and Randall Shivak | all rights reserved