{"version":"1.0","type":"rich","title":"Fork of Circles with D3","description":"This example generates a starry night visualization with 200 twinkling stars and five larger planets rendered as circles on a dark radial-gradient background. Using D3’s data join and method chaining, each star and planet gets randomized positions, sizes, and colors from predefined palettes. The stars’ opacity animates continuously through repeated transitions with `transition.attr` and a recursive `on('end')` callback to simulate twinkling. All geometry comes from procedural arrays built in JavaScript, with no external data source.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"","width":960,"height":500,"cache_age":3600}