Fig. 6From: PSTEP: project for solar–terrestrial environment predictionImages of a filament eruption observed by SDDI at Hida Observatory on 2 May 2016. Left panel shows full-disk solar image taken in H-alpha line center. Right panels show partial images taken in different wavelengths around H-alpha, where the bottom two images show components with a line-of-sight velocity of − 200 km/s and + 200 km/sBack to article page