What type of star is the Sun?
Q: What type of star is the Sun?
A: The Sun is a G-type main-sequence star based on its spectral class.
Q: How long has the Sun existed?
A: The Sun has existed for a little over 4.5 billion years.
Q: How wide is the Sun compared to Earth?
A: The Sun is about a hundred times as wide as the Earth.
Q: What is the mass of the Sun?
A: The mass of the Sun is 1.9891×1030 kg, which is 333,000 times the mass of Earth.
Q: How many Earths can fit inside the Sun?
A: 1.3 million Earths can fit inside the Sun.
Q: What type of energy does the sun give off?
A: The sun gives off different types of energy such as infra-red energy (heat), ultraviolet light, radio waves and light. It also gives off a stream of particles, which reaches Earth as "solar wind".
Q: How long does it take for energy in core of sun to escape?
A: It can take between 10,000 and 170,000 years for energy in core of sun to escape.
