Our Star
The Sun is an almost perfectly spherical white ball of plasma about 109 Earth diameters wide:
On Earth, atmospheric effects make it appear other colors:
Our star contains over 99% of the mass of the Solar System. The interior of the Sun has a temperature of around 30 million °F while the surface is about 10,000 °F. The Sun coverts about five billion kilograms of hydrogen to helium every second. This has been happening for billions of years and will continue for billions of years!
Even with atmospheric losses, under clear skies, around 1000 W worth of light energy reaches every square meter of the surface of the Earth!
Nevertheless, the Sun is small in comparison to several other stars:
The stars, in order from left to right, are: the Sun, Kochab, Rigel, Denab, Pistol, Ruby and Antares.
On Earth, atmospheric effects make it appear other colors:
Our star contains over 99% of the mass of the Solar System. The interior of the Sun has a temperature of around 30 million °F while the surface is about 10,000 °F. The Sun coverts about five billion kilograms of hydrogen to helium every second. This has been happening for billions of years and will continue for billions of years!
Even with atmospheric losses, under clear skies, around 1000 W worth of light energy reaches every square meter of the surface of the Earth!
Nevertheless, the Sun is small in comparison to several other stars:
The stars, in order from left to right, are: the Sun, Kochab, Rigel, Denab, Pistol, Ruby and Antares.
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