Abstract
The observations of the P/Halley's comet during the 15th. nigh of November, 1985, were programmed by using Eastman Kodak spectroscopic emulsions type 103 aO + Corning filter 5030 + Schott GG13, A39oo-4825, and type 103aE under Wratten filter No. 29. This was done in order to register the physical characteristics at a moderate distance of the perihelion 1.72 a. u., Yeomans (1983). The structural details in a scale 94.7 arc-sec. per mm. of 26"/28" Schmidt Camera in Tonantzintla, traces loops that shift in shape, changing its position. They show a possible encounter or impact with interplanetary material.
