1. Light scattering by an inhomogeneous spherically symmetric cometary atmosphere: Solar flux impinging on the nucleus head

   • S. J. Wilson
   • F. S. Wan

   OriginalPaper Pages: 1 - 6

2. A simple method for planetary surface ruggedness estimation

   • H. Jantunen
   • J. Raitala

   OriginalPaper Pages: 7 - 13

3. Magma genesis in a battered Moon: Effects of basin-forming impacts

   • Norman Hubbard
   • Constance G. Andre

   OriginalPaper Pages: 15 - 37

4. The fine structure of the Saturnian ring system

   • Harry L. F. Houpis
   • D. A. Mendis

   OriginalPaper Pages: 39 - 46

5. On the analysis of the variation of latitude

   • Peter Fellgett

   OriginalPaper Pages: 47 - 78

6. Some further measurements of Uranian ring condensations

   • R. Vasundhara
   • J. C. Bhattacharyya
   • H. S. Mahra

   OriginalPaper Pages: 79 - 82

7. On the variations in the insolation at Mercury resulting from oscillations of the orbital eccentricity

   • E. Van Hemelrijck

   OriginalPaper Pages: 83 - 93

8. Erratum

   Erratum Pages: 95 - 95

9. Call for papers

   Announcement Pages: 97 - 97