14. How long would it take a particle traveling at the speed of light to travel between the sun and Earth? 15. What is the temperature of the sun's surface? 16. How high may the sun's interior temperature be? 17.What two types of gases do you think make up the sun?Remember the sun is a stable star.(This is from last unit of the course.) Topic 3 The Sun's Atmosphere

14. Light travels at approximately 299,792,458 meters per second. The average distance between the Earth and the Sun is about 149.6 million kilometers (or 149,600,000,000 meters). Therefore, it takes roughly **8.3 minutes** for light to travel from the Sun to the Earth (149,600,000,000 meters / 299,792,458 meters/second ≈ 500 seconds ≈ 8.3 minutes).<br /><br />15. The surface temperature of the Sun, also known as the photosphere, is approximately **5,500 degrees Celsius (9,932 degrees Fahrenheit)**.<br /><br />16. The Sun's core temperature is estimated to be around **15 million degrees Celsius (27 million degrees Fahrenheit)**.<br /><br />17. The Sun is primarily composed of **hydrogen** (about 73%) and **helium** (about 25%). The remaining 2% consists of trace amounts of heavier elements like oxygen, carbon, nitrogen, and iron.<br />