Padalia, T. D; Gupta, S. K; Srivastava, R. K; Chaubey, U. S
(Astronomical Society of India, 1993)
The comet Swift-Tuttle (1992t) was observed through UBV filters during twelve nights in December 1992. Magnitude variations of six circular zones from the center of the cometary head have been given. On the night of 17 ...