Space Facts

Sun Facts

The Sun (or Sol), is the star at the centre of our solar system and is responsible for the Earth’s climate and weather. The Sun is an almost perfect sphere with a difference of just 10km in diameter between the poles and the equator. The average radius of the Sun is 695,508 km (109.2 x that of the Earth) of which 20–25% is the core.

Star Profile

Age:4.6 Billion Years
Type:Yellow Dwarf (G2V)
Diameter:1,392,684 km
Equatorial Circumference4,370,005.6 km
Mass:1.99 × 10^30 kg (333,060 Earths)
Surface Temperature:5,500 °C

Size of the Sun

Sun size compared to Earth, Neptune, Uranus, Saturn and Jupiter

Facts about the Sun

Quick Sun Facts

  1. At its centre the Sun reaches temperatures of 15 million °C.
  2. The Sun is all the colours mixed together, this appears white to our eyes.
  3. The Sun is mostly composed of hydrogen (70%) and Helium (28%).
  4. The Sun is a main-sequence G2V star (or Yellow Dwarf).
  5. The Sun is 4.6 billion years old.
  6. The Sun is 109 times wider than the Earth and 330,000 times as massive.

Detailed Sun Facts


NameDistance from the SunOrbit PeriodClassification
Mercury57,909,227 km (0.39 AU) 88 days
Venus108,209,475 km (0.73 AU)225 days
Earth149,598,262 km (1 AU)365.24 days
Mars227,943,824 km (1.38 AU)1.9 years
Ceres413,700,000 km (2.77 AU)4.6 years
Dwarf Planet
Jupiter778,340,821 km (5.20 AU)11.9 years
Saturn1,426,666,422 km (9.58 AU)29.5 years
Uranus2,870,658,186 km (19.22 AU)84.0 years
Neptune4,498,396,441 km (30.10 AU)164.8 years
Pluto5,874,000,000 km (39.26 AU)248.0 years
Dwarf Planet
Haumea6,452,000,000 km (43.13 AU)283.3 years
Dwarf Planet
Makemake6,850,000,000 km (45.79 AU)309.9 years
Dwarf Planet
Eris10,120,000,000 km (68.01 AU)560.9 years
Dwarf Planet