let spacing;

let radius = 3;

​

let planets = ["mercury", "venus", "earth", "moon", "mars", "jupiter", "saturn", "uranus", "neptune", "pluto"];

let years = [0.241, 0.615, 1, 0.0748, 1.88, 11.9, 29.4, 83.7, 163.7, 247.9];

let days = [175.9, 116.8, 1, 29.5, 1.03, 0.414, 0.444, 0.718, 0.671, 6.39];

let numPlanets;

​

let longest_day;

let longest_year;

​

function setup() {

  createCanvas(600, 600);

  numPlanets = planets.length;

  spacing = float(height)/(numPlanets+1);

  // longest_day = sort(years);

  // console.log(longest_day);

  // console.log(years);

}

​

function draw() {

  background(0);

  for (var i=0; i<numPlanets; i++){

    let curSpacing = spacing*(i+1);

    stroke(255);

    line(margin_x, curSpacing, width-margin_x, curSpacing);

    let daySpacing = days[i];

    let rotations = (float(width)-2.0*margin_x)/daySpacing;

    for (var y=0; y<rotations; y++){

      ellipse(margin_x + daySpacing*y, curSpacing, radius, radius);

    }

  }

}