1. Strange attractors in the Saturn ring system

   • V. Lalaja
   • V. P. N. Nampoori
   • R. Pratap

   OriginalPaper Pages: 105 - 119

2. Instability considerations at self-gravitating circumplanetary ringlet structures

   • E. Willerding
   • H. J. Fahr

   OriginalPaper Pages: 121 - 139

3. Periodic activity of Comet Bradfield 1987s

   • Jun-Ichi Watanabe
   • Takumi Abe

   OriginalPaper Pages: 141 - 147

4. The Rayleigh-Taylor instability in a self-gravitating two-layer fluid sphere

   • Shigeru Ida
   • Yoshitsugu Nakagawa
   • Kiyoshi akazawa

   OriginalPaper Pages: 149 - 174

5. Is Nereid a binary satellite?

   • Paolo Farinella
   • A. Cellino
   • P. Paolicchi

   OriginalPaper Pages: 175 - 179

6. Evening and morning twilight enhancement of λ5577 Å atomic oxygen line at Allahabad

   • N. Shrivastava
   • S. Shrivastava
   • A. N. Shrivastava

   OriginalPaper Pages: 181 - 190

7. Imaging Fabry-Pérot observations of [OI] 6300 Å emission in the coma of Halley's comet 1982i

   • C. Debi Prasad
   • J. N. Desai

   OriginalPaper Pages: 191 - 195

8. Variation in comet P/Halley

   • P. S. Goraya
   • H. K. Duggal
   • Wahab Uddin

   Letter to the Editor Pages: 197 - 198

9. Comparison of enhanced Mariner 9 and Viking imagery of Mars for analysis of short term geological phenomenon

   • Kent D. Trego

   Letter to the Editor Pages: 199 - 206