Title: Reviews in Modern Astronomy
Description: The fourth yearbook of the Astronomische Gesellschaft (AG) contains 18 contributions on solar physics, solar system problems (such as dust rings around planets, and the solar wind), the first results of the Hipparcos and ROSAT space missions, protostellar and protoplanetary evolution, the supernova SN 1987A in the LMC, and dynamos in galaxies. Eugene Parker's Schwarzschild Lecture is dedicated to the topic "convection, spontaneous discontinuities, and stellar X-ray emission".
Subjects: Astronomy, Physics, Physical geography, Observations and Techniques Astronomy, Astrophysics and Astroparticles, Geophysics/Geodesy