         const x = canvas.width / 2 + planet.distance * Math.cos(angle);
            const y = canvas.height / 2 + planet.distance * Math.sin(angle);

            // Draw orbit
            ctx.beginPath();
            ctx.arc(canvas.width / 2, canvas.height / 2, planet.distance, 0, Math.PI * 2);
            ctx.strokeStyle = 'rgba(255, 255, 255, 0.5)';
            ctx.stroke();

            // Draw planet
            ctx.beginPath();
            ctx.arc(x, y, planet.size, 0, Math.PI * 2);
            const 