Bondal, K. R.; Gaur, V. P.; Uddin, W.; Pande, M. C.
(1994)
An unusually 'long' surge of 'short' duration occurred in the NW region of the sun's limb on 1991 November 16, around 04 15 UT. Time-lapse photographic observations employing a Halle Hpalpha filter having a 0.5/0.7 Å ...