Another question is, "Does the stellar distribution by spectral type for this part of nearby space agree with a textbook’s statement of stellar-class distribution in the Milky Way?" In general, the distribution in the
model overrepresents M-class stars and underrepresents the number of stars in every other spectral class. This leads to discussions about why some spectral classes might be over- or underrepresented in the model, such as the difficulty in detecting M-class stars over a larger distance than the model scale.