Description
This study aims to analyze and compare two types of geodesic dome structures for application in small-scale planetariums designed for educational use in schools. The comparison focuses on two dome types: the Ribbed Dome and the 2v Geodesic Dome, both with a diameter of 4 meters. Each design was engineered so that no single component exceeds 1.10 x 1.60 square meters in size, allowing for convenient transportation by standard vehicles in support of mobile astronomy outreach activities.
The analysis includes structural design, prototype construction using corrugated cardboard, and comparative evaluation in terms of usability, ease of assembly, and material efficiency. The Ribbed Dome demonstrated flexibility in adapting to material limitations, ease of construction based on the horizontal coordinate system, reduced labor requirements, and minimal material waste.
In contrast, the 2v Geodesic Dome offers greater structural strength and a more modern appearance. However, it involves more complexity in both the assembly process and material preparation. Nevertheless, the triangular structure of this dome contributes to its durability and potential for long-term use. The findings of this study serve as a guideline for selecting dome designs that align with material and labor constraints while supporting educational goals and practical applications in schools—particularly for mobile planetarium activities that enhance astronomy learning.
