26
SURVEY OF THE PROBLEM
In the last two Chapters we permit ourselves an excursion into outer
space and observe how the complexity of the problem grows when the
conditions of thermodynamical equilibrium in an enclosure are gradually
relaxed. The “outside of a star” is a problem expanding indefinitely into
the whole subject of stellar spectroscopy and stellar observation generally.
For the most part we pursue only those branches of the subject which
illustrate and amplify the methods and theories used for the stellar
interior.