Solar System Orbits (Fork of Fork of HTML Starter)
This interactive HTML visualization presents the solar system with animated planet orbits around a central sun. Users click a planet to reveal two additional data views: a line chart showing distance from the sun versus average temperature, and a pie chart displaying atmospheric composition percentages for that planet. The orbit diagram uses SVG paths with animated motion along circular trajectories, while the charts are generated programmatically. The line charts employ D3's scaleLinear for axes and a monotone curve line, while the pie charts use the d3.pie layout algorithm with d3.arc for rendering sectors.