
The
„special basic model" discussed in
Chapters 1 to 7 can also be applied to systems
that are not similar to the sun. Equation 1.4.1
for solarlike star systems can be generalized so
that it applies to any number of
stars of a spectral class in the galaxy. 
Related
to all star systems A in our galaxy, the
number N_{X} of
a set of star systems results with:
8.1.1 Equation 
N_{x}
= A·F_{X} 
F_{X} is the
probability of the occurrence of a set of stars that have
a certain property.
A natural order of the stars is given by the system of
spectral classes. [1] The spectral class of the G stars
was already used in the special basic model.
Equation 8.1.1 therefore applies to the star set of any
spectral class. (see also chapter 12.1) This means that
the concept derived so far can be applied to all star
sets for which observation data are available.
