Sun
The Sun
The Sun is the most prominent feature in our Solar System. It is the largest object and contains approximately 98% of the total Solar System mass (Jupiter contains most of the rest). One hundred and nine Earths would be required to fit across the Sun's disk, and its interior could hold over 1.3 million Earths.
The Sun's outer visible layer is called the photosphere and has a temperature of 6,000°C (11,000°F). This layer has a mottled appearance due to the turbulent eruptions of energy at the surface.
The Sun burns up four million tonnes of hydrogen per second. The energy produced by the Sun in one second would be enough to provide Britain in the United Kingdom with all the electricity it needs for over 2,500 million years. Although the Sun is consuming gigantic amounts of fuel every second, it has enough supplies to last it at least another 5,000 million years.
The Sun is, at present, about 70% hydrogen and 28% helium by mass everything else (metals) amounts to less than 2%. This changes slowly over time as the Sun converts hydrogen to helium in its core.
The Sun is nearly 150 million km (93 million miles) from Earth. If the Sun was reduced to the size of a fottball, then the Earth would be 30 m (98 ft) distant from it. That is longer than a tennis court, about the same distant as the width of an ice rink or the same length as three double-decker buses bumper to bumper.