Q:

How old is the sun?

A:

Quick Answer

The sun is approximately 4.6 billion years old. It was formed when part of an immense molecular cloud underwent a gravitational collapse. The sun is a ball of gas, consisting of 92.1 percent hydrogen and 7.8 percent helium.

Continue Reading

Full Answer

The sun is situated at the center of the solar system and makes up approximately 99.8 percent of the whole solar system's mass. The sun's mass is over 330,000 times that of the Earth. The sun's diameter is about 865,000 miles, over 100 times the diameter of the Earth. The core of the sun reaches a temperature of about 27 million degrees Fahrenheit. The sun's mean distance from Earth is approximately 93 million miles.

Learn more about Our Sun

Related Questions

  • Q:

    How do sunspots form?

    A:

    The Stanford Solar Center states that sunspots form when the sun's magnetic field protrudes through its surface. The sun's magnetic field is composed of tubes that affect the sun’s surface temperature at the point of protrusion. Sunspots exhibit polarity, which creates a pair of positive and negative poles.

    Full Answer >
    Filed Under:
  • Q:

    How does the sun produce energy?

    A:

    The sun produces energy through nuclear fusion. The sun is a large ball of hydrogen and helium undergoing constant nuclear fusion, in which atoms of hydrogen combine to form helium and release a large quantity of energy.

    Full Answer >
    Filed Under:
  • Q:

    How many miles is the sun from Earth?

    A:

    On average, the sun is 92,960,000 miles from Earth. The Earth has an elliptical orbit, so this distance varies. At the closest point of its orbit, called perihelion, Earth is 91,000,000 miles from the sun. At aphelion, the furthest Earth gets from the sun, they are 91,402,500 miles apart.

    Full Answer >
    Filed Under:
  • Q:

    What type of star is the sun?

    A:

    The sun is classified as a G2V star, sometimes referred to as a yellow dwarf. It is a Population I star in its main sequence. Although called a yellow dwarf, the sun actually emits white light that is often skewed by Earth's atmosphere and interstellar dust.

    Full Answer >
    Filed Under:

Explore