Ground Observatories

23-NOV-09 17:54:42 U.T.
B0 = 1.7 P = 18.6

Big Bear H-alpha 20-Nov-09 19:53:01

Big Bear White-light 21-Sep-06 20:54:36

Catania H-alpha

MLSO K-corona

Sac Peak H-alpha

Sac Peak He 1083 nm

Kitt Peak Photospheric

Kitt Peak Chromospheric

Mt. Wilson magnetic 10-21-09