{"version":"1.0","type":"rich","title":"Moon Calendar 2022","description":"The Moon Calendar 2022 is an annual grid of moons, one per day, arranged by month (rows) and day (columns). Each cell displays the moon’s phase as a small orthographic projection of a sphere, with the lit portion rendered in light gray against a dark background. The phase is calculated using the “Simple” lunar-period formula from ben-daglish.net, given a reference new moon in 1970. The visualization uses `d3.timeDays` to generate daily data, `d3.geoPath` with a `d3.geoOrthographic` projection to draw each moon, and `d3.axisLeft`/`d3.axisTop`/`d3.axisBottom` for axes. Clicking the SVG triggers an animated expanding red ring around the current day’s moon via `transition().duration()`.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/a9a7435bbae4411ea025ee54d028f554?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}