The sun is primarily composed of hydrogen and helium. Hydrogen is the most abundant element of the Earth’s closest star, representing 71 percent of its mass. Helium is the second most abundant element in the sun, representing about 27 percent of its mass. Oxygen, carbon, nitrogen, silicone, magnesium, neon, iron and sulfur combine to form about 1 percent of the sun’s mass.Know More
Scientists study the components of the sun by analyzing the spectrum of light it gives off. The same technique works for stars, but because the sun is so much closer, scientists can collect better data. While this technique gives scientists excellent data about the outer layers of the sun, some details about the inner core remain unknown.
The sun is a flaming ball of superheated gas, about 864,000 miles in diameter. Fueled by intense nuclear reactions deep in its core, the sun reaches astonishingly hot temperatures as it converts hydrogen into helium. The sun’s surface reaches more than 10,000 F, but the core is much warmer, reaching up to 28 million F. Eventually, the sun will run out of hydrogen in its core, and, eventually, the nuclear process will stop. The sun has burned through about half of its helium, but it should continue to light the sky for another 5 billion years.Learn more about Our Sun
The air is primarily composed of five gases: nitrogen, oxygen, argon, carbon dioxide and water vapor. In addition to these five gases, there are also trace amounts of several gases, but these make up much less than one percent of air.Full Answer >
The sun's photosphere is composed of granular cells responsible for heat transfer. These cells cycle heat back to the center of the sun to be reheated.Full Answer >
Observing the sun from earth requires special precautions and equipment as direct observation with the naked eye or clear lenses causes eye damage and can result in blindness. An image of the sun can be projected directly onto paper, allowing safe observation, or a viewing tool with an appropriate filter can be used./
The red or orange tint the sun sometimes takes is caused by small particles in the Earth's atmosphere. The sun appears redder at sunset because the light must pass through a greater thickness of air compared to when the sun is at its zenith.Full Answer >