A semi-popular account of stars and gaseous nebulae, treating topics such as stellar evolution, the origin of elements, supernovae and cosmic rays.

This scarce antiquarian book is a facsimile reprint of the original. Due to its age, it may contain imperfections such as marks, notations, marginalia and flawed pages. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions that are true to the original work.

Contains 250 questions and answers about astronomy, particular for the amateur astronomer.

Contents: Energy distribution in globular star clusters Data for southern globular clusters Measurements of the energy distributions in southern globular clusters Spectrophotometry of the Wolf-Rayet star of gamma 2 velorum The hydrogen/helium ratio in HD 96446 The emission nebulosities in the large Magellanic cloud Emission nebulosities in the small Magellanic cloud Photographic region of the spectrum of NGC 7009 Report on research carried out at the University of Michigan and supported by the U.S.A.F. under Contract No. AF 49(638)807.

Thoroughly revised and expanded throughout, the new edition is a graduate-level text and reference book on gaseous nebulae, nova and supernova remnants. Much of the new data and new images are from the Hubble Space Telescope with two wholly new chapters being added along with other new features. The previous edition which was tried and tested for thirty years has now been succeeded by a revised, updated, larger edition, which will be valuable to anyone seriously interested in astrophysics.