COMMISSION 27 OF THE I. A. U.
         INFORMATION BULLETIN ON VARIABLE STARS
                     Number 1766

                                Konkoly Observatory
                                Budapest
                                1980 April 1


        IAU COLLOQUIUM No. 58 ON STELLAR HYDRODYNAMICS


This colloquium will be held at Los Alamos Scientific Laboratory on 12 - 14
August 1980. The topics will include

1D, 2D and 3D collapse of interstellar clouds

Solar pulsations

Beta Cephei and 53 Persei variables

Delta Scuti and dwarf Cepheids

Cepheids of populations I and II

RR Lyrae and BL Herculis variables

Red variables

Planetary nebulae ejection

R Coronae Borealis pulsations

Supernovae

White dwarf pulsations

Novae

Although the topic list is organized by observed type of variable, the emphasis
of the colloquium will be on theoretical aspects and the interpretation of
observations rather than a presentation of raw observations alone. Each topic
will be introduced by a review paper followed by contributed papers.

If you wish to present a paper at this colloquium send details to reach
R S Stobie no later than 1 July 1980 giving information on title paper,
abstract, authors and who is going to present it.

IAU Travel Grants are available to a limited number of applicants who have no
other means of financial support. If you wish to apply for a Travel Grant
contact R S Stobie as soon as possible.


Royal Observatory
Blackford Hill
Edinburgh EH9 3HJ
SCOTLAND

R.S. STOBIE
Chairman
Scientific Organizing Committee