Final answer:
In astronomy, scale models elicit a comprehensible representation of the solar system, which is too large to observe in its entirety. Scale models help us to grasp the vast distances and provide perspective on the relative sizes and movements of celestial bodies within the system.
Step-by-step explanation:
A model of the solar system shows b. Something too large to observe all at once. Because the actual distances and sizes involved in our solar system are so vast, astronomers create scale models to help visualize and understand the relative positions and movements within it. The model can represent the immense distance of, for instance, 1.4 billion kilometers from the Sun to Saturn in a more comprehensible way. Scale models also demonstrate the limitations of managing such grand scales within the confines of a textbook or classroom.
The practice of constructing these models is a crucial astronomy tool, particularly when we consider that most celestial objects are beyond our direct reach. Understanding the vastness of space and the complexities of celestial objects helps us appreciate how they are observed and analyzed, primarily from afar, using advanced technology and methods of analysis.