USO  

 
 
 

 
 

November 24-December 2,1983

This sequence shows the day-to-day development of a huge quiescent filament, of approximately 370,800 km length, during the period 24 November - 2 December 1983. Frame 'B' on 25 December was taken in H-alpha -0.5 A and frame 'F' on 29 November in H-alpha +0.5 A, while, all other frames were taken in H-alpha line center.