What Is Solar System

[ { "narration": "A solar system is a star and all the celestial bodies gravitationally bound to it, including planets, dwarf planets, moons, asteroids, and comets.", "duration": 7, "animation_code": "ctx.beginPath(); ctx.arc(w / 2, h / 2, 20 + 10 * Math.sin(progress * Math.PI), 0, Math.PI * 2); ctx.fillStyle = 'yellow'; ctx.shadowBlur = 15; ctx.shadowColor = 'orange'; ctx.fill(); ctx.shadowBlur = 0; for (let i = 0; i < 5; i++) { let orbitRadius = 60 + i * 25; let angle = (progress * Math.PI * 2 * (0.5 + i * 0.1)) + (i * Math.PI / 3); let x = w / 2 + Math.cos(angle) * orbitRadius; let y = h / 2 + Math.sin(angle) * orbitRadius; ctx.beginPath(); ctx.arc(x, y, 5, 0, Math.PI * 2); ctx.fillStyle = 'lightgray'; ctx.fill(); } ctx.fillStyle = 'white'; ctx.font = '30px Arial'; ctx.textAlign = 'center'; ctx.fillText('Solar System', w / 2, h / 2 + 100 * progress);" }, { "narration": "Our own Solar System is centered around the Sun, a magnificent star, and its eight planets, along with dwarf planets, moons, asteroids, and comets.", "duration": 8, "animation_code": "ctx.beginPath(); ctx.arc(w / 2, h / 2, 30, 0, Math.PI * 2); ctx.fillStyle = 'gold'; ctx.shadowBlur = 20; ctx.shadowColor = 'orange'; ctx.fill(); ctx.shadowBlur = 0; const numPlanets = 8; for (let i = 0; i < numPlanets; i++) { let orbitRadius = 60 + i * 25; if (progress * numPlanets > i) { ctx.beginPath(); ctx.arc(w / 2, h / 2, orbitRadius, 0, Math.PI * 2 * Math.min(1, progress * numPlanets - i)); ctx.strokeStyle = 'rgba(200, 200, 200, 0.5)'; ctx.lineWidth = 1; ctx.stroke(); } } ctx.fillStyle = 'white'; ctx.font = '40px Arial'; ctx.textAlign = 'center'; ctx.fillText('Our Solar System', w / 2, h * 0.2 + (h * 0.1 * (1 - progress)));" }, { "narration": "The Sun is a massive ball of hot, glowing gas, providing light and heat that makes life on Earth possible. It's the gravitational anchor for everything around it.", "duration": 7, "animation_code": "const sunRadius = 80 + 10 * Math.sin(progress * Math.PI * 4); ctx.beginPath(); ctx.arc(w / 2, h / 2, sunRadius, 0, Math.PI * 2); ctx.fillStyle = 'orange'; ctx.shadowBlur = 30; ctx.shadowColor = 'red'; ctx.fill(); ctx.shadowBlur = 0; for (let i = 0; i < 12; i++) { ctx.beginPath(); let angle = i * Math.PI / 6 + progress * Math.PI; let startX = w / 2 + Math.cos(angle) * sunRadius; let startY = h / 2 + Math.sin(angle) * sunRadius; let endX = w / 2 + Math.cos(angle) * (sunRadius + 50 * progress); let endY = h / 2 + Math.sin(angle) * (sunRadius + 50 * progress); ctx.moveTo(startX, startY); ctx.lineTo(endX, endY); ctx.strokeStyle = `rgba(255, 255, 0, ${1 - progress})`; ctx.lineWidth = 2; ctx.stroke(); } ctx.fillStyle = 'white'; ctx.font = '50px Arial'; ctx.textAlign = 'center'; ctx.fillText('The Sun', w / 2, h * 0.8 - (h * 0.1 * (1 - progress)));" }, { "narration": "Close to the Sun, we have the four inner, rocky planets: Mercury, Venus, Earth, and Mars. They are smaller, denser, and made primarily of rock and metal.", "duration": 8, "animation_code": "ctx.beginPath(); ctx.arc(w * 0.2, h / 2, 25, 0, Math.PI * 2); ctx.fillStyle = 'gold'; ctx.shadowBlur = 15; ctx.shadowColor = 'orange'; ctx.fill(); ctx.shadowBlur = 0; const planetData = [ { name: 'Mercury', color: 'gray', radius: 6, orbit: 80 }, { name: 'Venus', color: 'orange', radius: 8, orbit: 110 }, { name: 'Earth', color: 'blue', radius: 9, orbit: 140 }, { name: 'Mars', color: 'red', radius: 7, orbit: 170 } ]; for (let i = 0; i < planetData.length; i++) { const p = planetData[i]; if (progress * planetData.length > i) { let currentProgress = Math.min(1, progress * planetData.length - i); ctx.beginPath(); ctx.arc(w * 0.2, h / 2, p.orbit, 0, Math.PI * 2 * currentProgress); ctx.strokeStyle = 'rgba(150, 150, 150, 0.4)'; ctx.lineWidth = 0.5; ctx.stroke(); let angle = currentProgress * Math.PI * 2 * 0.5 + i * Math.PI / 2; let x = w * 0.2 + Math.cos(angle) * p.orbit; let y = h / 2 + Math.sin(angle) * p.orbit; ctx.beginPath(); ctx.arc(x, y, p.radius, 0, Math.PI * 2); ctx.fillStyle = p.color; ctx.fill(); ctx.fillStyle = `rgba(255, 255, 255, ${currentProgress})`; ctx.font = '14px Arial'; ctx.textAlign = 'center'; ctx.fillText(p.name, x, y - p.radius - 8); } } ctx.fillStyle = 'white'; ctx.font = '30px Arial'; ctx.textAlign = 'center'; ctx.fillText('Inner Planets', w * 0.2, h * 0.1 + (h * 0.05 * (1 - progress)));" }, { "narration": "Further out are the four gas giants: Jupiter, Saturn, Uranus, and Neptune. These are much larger, made mostly of hydrogen and helium, and often feature rings or many moons.", "duration": 9, "animation_code": "ctx.beginPath(); ctx.arc(w * 0.2, h / 2, 25, 0, Math.PI * 2); ctx.fillStyle = 'gold'; ctx.shadowBlur = 15; ctx.shadowColor = 'orange'; ctx.fill(); ctx.shadowBlur = 0; const outerPlanetData = [ { name: 'Jupiter', color: '#E0BA8F', radius: 20, orbit: 90 }, { name: 'Saturn', color: '#D4C49F', radius: 18, orbit: 130, hasRings: true }, { name: 'Uranus', color: '#A7DBD8', radius: 15, orbit: 170 }, { name: 'Neptune', color: '#69D2E7', radius: 16, orbit: 210 } ]; for (let i = 0; i < outerPlanetData.length; i++) { const p = outerPlanetData[i]; if (progress * outerPlanetData.length > i) { let currentProgress = Math.min(1, progress * outerPlanetData.length - i); ctx.beginPath(); ctx.arc(w * 0.2, h / 2, p.orbit, 0, Math.PI * 2 * currentProgress); ctx.strokeStyle = 'rgba(150, 150, 150, 0.4)'; ctx.lineWidth = 0.5; ctx.stroke(); let angle = currentProgress * Math.PI * 2 * 0.3 + i * Math.PI / 1.5; let x = w * 0.2 + Math.cos(angle) * p.orbit; let y = h / 2 + Math.sin(angle) * p.orbit; ctx.beginPath(); ctx.arc(x, y, p.radius, 0, Math.PI * 2); ctx.fillStyle = p.color; ctx.fill(); if (p.hasRings) { ctx.save(); ctx.translate(x, y); ctx.rotate(Math.PI / 4); ctx.beginPath(); ctx.ellipse(0, 0, p.radius + 10, p.radius + 3, 0, 0, Math.PI * 2); ctx.strokeStyle = `rgba(200, 200, 200, ${currentProgress})`; ctx.lineWidth = 2; ctx.stroke(); ctx.restore(); } ctx.fillStyle = `rgba(255, 255, 255, ${currentProgress})`; ctx.font = '14px Arial'; ctx.textAlign = 'center'; ctx.fillText(p.name, x, y - p.radius - 8); } } ctx.fillStyle = 'white'; ctx.font = '30px Arial'; ctx.textAlign = 'center'; ctx.fillText('Outer Planets', w * 0.2, h * 0.1 + (h * 0.05 * (1 - progress)));" }, { "narration": "But our Solar System is even bigger! Beyond Mars lies the Asteroid Belt, and far past Neptune, we find the Kuiper Belt, home to dwarf planets like Pluto and countless icy bodies.", "duration": 9, "animation_code": "ctx.beginPath(); ctx.arc(w * 0.2, h / 2, 20, 0, Math.PI * 2); ctx.fillStyle = 'gold'; ctx.shadowBlur = 10; ctx.shadowColor = 'orange'; ctx.fill(); ctx.shadowBlur = 0; const allOrbitRadii = [80, 110, 140, 170, 200, 230, 260, 290]; for(let r of allOrbitRadii) { ctx.beginPath(); ctx.arc(w * 0.2, h / 2, r, 0, Math.PI * 2); ctx.strokeStyle = 'rgba(100, 100, 100, 0.2)'; ctx.lineWidth = 0.5; ctx.stroke(); } if (progress < 0.6) { const asteroidRadius = 185; const numAsteroids = 50; let opacity = Math.min(1, progress * 2); for (let i = 0; i < numAsteroids; i++) { let angle = (i / numAsteroids * Math.PI * 2) + (progress * Math.PI * 0.2); let dist = asteroidRadius + (Math.sin(i * 0.7) * 15); let x = w * 0.2 + Math.cos(angle) * dist; let y = h / 2 + Math.sin(angle) * dist; ctx.beginPath(); ctx.arc(x, y, 1 + Math.random() * 2, 0, Math.PI * 2); ctx.fillStyle = `rgba(150, 150, 150, ${opacity})`; ctx.fill(); } ctx.fillStyle = `rgba(255, 255, 255, ${opacity})`; ctx.font = '20px Arial'; ctx.textAlign = 'center'; ctx.fillText('Asteroid Belt', w * 0.2 + asteroidRadius + 50, h / 2 - 50); } if (progress > 0.4) { const kuiperRadius = 350; const numKBOs = 80; let opacity = Math.min(1, (progress - 0.4) * 2); for (let i = 0; i < numKBOs; i++) { let angle = (i / numKBOs * Math.PI * 2) - (progress * Math.PI * 0.1); let dist = kuiperRadius + (Math.sin(i * 0.5) * 30); let x = w * 0.2 + Math.cos(angle) * dist; let y = h / 2 + Math.sin(angle) * dist; ctx.beginPath(); ctx.arc(x, y, 1 + Math.random(), 0, Math.PI * 2); ctx.fillStyle = `rgba(200, 200, 255, ${opacity})`; ctx.fill(); } let plutoAngle = (progress - 0.4) * Math.PI * 2 * 0.05; let plutoX = w * 0.2 + Math.cos(plutoAngle) * (kuiperRadius + 50); let plutoY = h / 2 + Math.sin(plutoAngle) * (kuiperRadius + 50); ctx.beginPath(); ctx.arc(plutoX, plutoY, 5, 0, Math.PI * 2); ctx.fillStyle = `rgba(150, 150, 200, ${opacity})`; ctx.fill(); ctx.fillStyle = `rgba(255, 255, 255, ${opacity})`; ctx.font = '14px Arial'; ctx.textAlign = 'center'; ctx.fillText('Pluto', plutoX, plutoY - 12); ctx.fillStyle = `rgba(255, 255, 255, ${opacity})`; ctx.font = '20px Arial'; ctx.textAlign = 'center'; ctx.fillText('Kuiper Belt', w * 0.2 + kuiperRadius, h / 2 + 100); }" }, { "narration": "From the fiery Sun to the distant icy realms, our Solar System is a vast and dynamic place, full of wonders waiting to be explored. And it's just one of billions of solar systems in our galaxy!", "duration": 10, "animation_code": "ctx.beginPath(); ctx.arc(w / 2, h / 2, 25, 0, Math.PI * 2); ctx.fillStyle = 'gold'; ctx.shadowBlur = 15; ctx.shadowColor = 'orange'; ctx.fill(); ctx.shadowBlur = 0; for (let i = 0; i < 100; i++) { let x = Math.random() * w; let y = Math.random() * h; let size = 1 + Math.random() * 1; ctx.beginPath(); ctx.arc(x, y, size, 0, Math.PI * 2); ctx.fillStyle = `rgba(255, 255, 255, ${progress * 0.5 + 0.5})`; ctx.fill(); } const planetData = [ { name: 'Mercury', color: 'gray', radius: 4, orbit: 40 }, { name: 'Venus', color: 'orange', radius: 5, orbit: 55 }, { name: 'Earth', color: 'blue', radius: 6, orbit: 70 }, { name: 'Mars', color: 'red', radius: 5, orbit: 85 }, { name: 'Jupiter', color: '#E0BA8F', radius: 15, orbit: 110 }, { name: 'Saturn', color: '#D4C49F', radius: 13, orbit: 140, hasRings: true }, { name: 'Uranus', color: '#A7DBD8', radius: 10, orbit: 170 }, { name: 'Neptune', color: '#69D2E7', radius: 11, orbit: 200 } ]; for (let i = 0; i < planetData.length; i++) { const p = planetData[i]; let angle = (progress * Math.PI * 2 * (0.1 + i * 0.01)) + (i * Math.PI / 4); let orbitScale = 1 + (1 - progress) * 0.5; let x = w / 2 + Math.cos(angle) * p.orbit * orbitScale; let y = h / 2 + Math.sin(angle) * p.orbit * orbitScale; ctx.beginPath(); ctx.arc(w / 2, h / 2, p.orbit * orbitScale, 0, Math.PI * 2); ctx.strokeStyle = 'rgba(150, 150, 150, 0.2)'; ctx.lineWidth = 0.5; ctx.stroke(); ctx.beginPath(); ctx.arc(x, y, p.radius, 0, Math.PI * 2); ctx.fillStyle = p.color; ctx.fill(); if (p.hasRings) { ctx.save(); ctx.translate(x, y); ctx.rotate(Math.PI / 4); ctx.beginPath(); ctx.ellipse(0, 0, p.radius + 8, p.radius + 2, 0, 0, Math.PI * 2); ctx.strokeStyle = 'rgba(200, 200, 200, 0.6)'; ctx.lineWidth = 1; ctx.stroke(); ctx.restore(); } } const asteroidRadius = 95 * orbitScale; const numAsteroids = 30; for (let i = 0; i < numAsteroids; i++) { let angle = (i / numAsteroids * Math.PI * 2) + (progress * Math.PI * 0.05); let dist = asteroidRadius + (Math.sin(i * 0.7) * 10); let x = w / 2 + Math.cos(angle) * dist; let y = h / 2 + Math.sin(angle) * dist; ctx.beginPath(); ctx.arc(x, y, 1, 0, Math.PI * 2); ctx.fillStyle = 'rgba(150, 150, 150, 0.3)'; ctx.fill(); } const kuiperRadius = 250 * orbitScale; const numKBOs = 50; for (let i = 0; i < numKBOs; i++) { let angle = (i / numKBOs * Math.PI * 2) - (progress * Math.PI * 0.02); let dist = kuiperRadius + (Math.sin(i * 0.5) * 20); let x = w / 2 + Math.cos(angle) * dist; let y = h / 2 + Math.sin(angle) * dist; ctx.beginPath(); ctx.arc(x, y, 1, 0, Math.PI * 2); ctx.fillStyle = 'rgba(200, 200, 255, 0.2)'; ctx.fill(); } ctx.fillStyle = 'white'; ctx.font = '40px Arial'; ctx.textAlign = 'center'; ctx.fillText('Our Solar System', w / 2, h * 0.1); ctx.font = '20px Arial'; ctx.fillText('A Vast and Dynamic Place', w / 2, h * 0.1 + 40);" } ]