sun in two wavelengths

From October 23, the sun in two wavelengths. A close-up of huge active region 2192 can be seen here.

October 23, 2014/ Zeiss APQ 130 telescop, Baader Herschel wedge white light filte, Coronado 90mm Ha filte, and PGR Grasshopper Express 6 megapixel camera

© Alan Friedman | all rights reserved