This visualization uses a force-directed simulation to lay out a network of nodes, likely representing celestial objects, with each node’s position computed by D3’s `d3.forceSimulation`. The code generates synthetic star names using a custom `starNameGenerator` function, which produces labels like “PSRJ” followed by two random two-digit numbers, mimicking pulsar catalog designations. The rendering relies on D3’s force layout to compute collision and linkage forces, though no explicit visual encoding (e.g., size or color) is defined beyond node positions. The example demonstrates a generic template for simulating dynamic graphs, with the data source being procedurally generated placeholder names rather than an external dataset.