w = 1000; h = 1000;

​

c_x = w/2;

c_y = w/2;

​

orbit_speed = 20;

starlink_speed = 10;

​

// earth diameter

earth_actual_diameter = 12756.2

moon_actual_distance = 384399

starlink_actual_distance = 550

​

earth_diameter = 16;

moon_distance = (earth_diameter/earth_actual_diameter) * moon_actual_distance

starlink_distance = earth_diameter + (earth_diameter/earth_actual_diameter) * starlink_actual_distance

​

function setup() {

  createCanvas(w, h);

}

​

function draw() {

  background(0);

  ellipse(c_x, c_y, earth_diameter);

  draw_moon(radians((millis() - 00) / orbit_speed))

  o_offset = 1000;

  for (let i = 0; i < 1000; i += 100) {

    draw_starlink(radians((millis() - o_offset - i) / starlink_speed))

  }  

}

​

function draw_moon(theta) {

  x = c_x + moon_distance * cos(theta)

  y = c_y + moon_distance * sin(theta)

  ellipse(x,y, earth_diameter*0.27);

}

​

function draw_starlink(theta) {

  x = c_x + starlink_distance * cos(theta)

  y = c_y + starlink_distance * sin(theta)

  ellipse(x,y, earth_diameter*0.17);

}

​