This interactive visualization displays the distribution of fictional Star Wars planets from the SWAPI dataset, mapping their diameter and population values through a bubble chart. Each planet appears as a circle positioned along the axes, with the plot built using SVG rendering and D3’s `scaleLinear`, `scaleSqrt`, and `d3.pack` for hierarchical layout. The visualization also incorporates `d3.axisBottom` and `d3.axisLeft` for coordinate scales, while a custom size legend is generated via the `sizeLegend` function to indicate population scaling.