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28. Commission des Nébuleuses et des Amas Stellaires

Published online by Cambridge University Press:  25 April 2016

M. H. Shapley ,
MM. Ambartsumian ,
Baade ,
Bowen ,
Carpenter ,
de Kerolyr ,
Mme H. B. Hogg ,
MM. Hubble ,
Humason  and
Lampland
...Show all authors
M. H. Shapley
Affiliation:
Director of the Harvard College Observatory, Cambridge, Mass., U.S.A.

Extract

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During the past three years observational and theoretical work has been uncommonly extensive and fruitful in two of the fields within the interests of Commission 28—namely, the distribution of external galaxies and the analysis of diffuse nebulosity, the latter including interstellar absorbing material. Important work is also under way at a number of observatories in the interpretation of planetary nebulae. Studies of clusters, however, have been limited to a few active workers, and progress has not been rapid in the analysis of individual galaxies.

Type
Part I Reports and Recommendations Presented to the General Assembly by the Executive Committee and the Commissions of the Union
Information
Transactions of the International Astronomical Union , Volume 6 , 1939 , pp. 244
Copyright
Copyright © International Astronomical Union 1976 1939