Impact cratering - a review, with special reference to the economic importance of impact structures and the Southern African impact crater record W. U. Reimold OriginalPaper Pages: 21 - 45
Description of the trajectory functions of TOPEX/POSEIDON navigation Ahmed SalamaJulie Kangas OriginalPaper Pages: 47 - 60
The linke turbidity factor and Ångström coefficient in humid climate of Bahrain W. E. AlnaserN. S. Awadalla OriginalPaper Pages: 61 - 74
Visibility of the new Moon at two sites I: Maryland situated at northern geographical latitude. II: Sacramento peak situated at high altitude above sea level J. S. MikhailA. S. AsaadN. Y. Hassanin OriginalPaper Pages: 93 - 108
Improving the crescent visibility limits due to factors causing decrease in the sky twilight brightness J. S. MikhailA. S. AsaadN. Y. Hassanin OriginalPaper Pages: 109 - 121
Variation of evening Zenith sky twilight brightness and colour at Abu-Simbel during spring S. NawarJ. S. Mikhail OriginalPaper Pages: 123 - 131
Light pollution and night sky brightness at the site of Kottamia Observatory S. NawarA. B. MorcosJ. S. Mikhail OriginalPaper Pages: 133 - 141
Decrease in the clear air transmission at Helwan Observatory site J. S. MikhailB. B. BaghosM. Ibrahim OriginalPaper Pages: 143 - 149
Power spectrum of geomagneticK p-index detected at Misallat magnetic station A. A. GalalH. A. DeebesShahinaz Yousef OriginalPaper Pages: 151 - 162
North-South asymmetry of the daily interplanetary magnetic field spiral during the period: 1965–1990 I. Sabbah OriginalPaper Pages: 173 - 178
Potential of interplanetary torques and solar modulation for triggering terrestrial atmospheric and lithospheric events Rhodes W. FairbridgeHans J. HauboldGöran Windelius OriginalPaper Pages: 179 - 181
A numerical simulation of the Martian polar cap breeze Walter Fernández OriginalPaper Pages: 193 - 205
High resolution imaging of Pluto and Charon with the Faint Object Camera of the Hubble Space Telescope R. Albrecht OriginalPaper Pages: 207 - 212
Differential Radial Velocity Spectrometer for extrasolar planetary studies Rajendra Vikramsingh OriginalPaper Pages: 213 - 220