The mass of a planet is the quantity that determines the formation of an atmosphere. The massive outer planets of our solar system have huge atmospheres of hydrogen, helium, ammonia and methane. …

Christopher R. Kitchin: Telescopes and Techniques. An Introduction to Practical Astronomy. Springer Verlag, London 1995. pages. Softcover 39,00 DM. ISBN 3-540-19898-9 …

**Throughout history, many societies and individuals have believed that the moon has an influence on weather and climate. In fact, scientists have observed a correlation between rainfall variations, thunderstorm frequency, daily pressure fluctuations, hurricanes, cloud cover and the phases of the moon. …

Lecture given at the Spring Conference of the DPG 1993 in Greifswald A. Tusche1, R. Lebert1, D. Rothweiler1, M. Krumrey2, W. …