in Calcium K or a comparison of both wavelengths.
Date:	March 8, 2007 1500UT
Location:	Rockville, Maryland USA
Rotation:	2054
Filter:	Coronado SolarMax 90
Camera:	SBIG ST-2000XM
Exposure:	.19 second
Processing:	LuCam, RegiStax 4, Adobe PhotoShop CS2