Facts: The Sun

Published December 17, 2011

"    The Sun is a star found at the centre of the Solar System.

"    It makes up around 99.86% of the Solar System’s mass.

"    At around 1,392,000 kilometres (865,000 miles) wide, the Sun’s diameter is about 110 times wider than Earth’s.

"    Around 74% of the Sun’s mass is made up of hydrogen. Helium makes up around 24%, while heavier elements such as oxygen, carbon, iron and neon make up the remaining percentage.

"    Light from the Sun reaches Earth in around eight minutes.

"    The Sun’s surface temperature is around 5500 degrees Celsius (9941 degrees Fahrenheit), so pack plenty of Sun screen if you plan on visiting (remembering that the average distance from the Sun to the Earth is around 150 million kilometres).

"    The Sun’s core is around 13600000 degrees Celsius!

"    The Sun generates huge amounts of energy by combining hydrogen nuclei into helium. This process is called nuclear fusion.

"    The Sun produces a solar wind which contains charged particles such as electrons and protons. They escape the Sun’s intense gravity because of their high kinetic energy and the high temperature of the Sun’s corona (a type of plasma atmosphere that extends into space).

"    Planets with strong magnetic fields, such as Earth, manage to deflect most of these charged particles as they approach.

"    A solar eclipse occurs when the moon is between the Sun and the Earth.

Opinion

Editorial

Delicate balance
Updated 13 Mar, 2026

Delicate balance

PAKISTAN has to maintain a delicate balance where the geopolitics of the US-Israeli aggression against Iran are...
Soaring costs
13 Mar, 2026

Soaring costs

FOR millions of households already grappling with Ramazan inflation, the sharp increase in petrol and diesel prices...
Perilous lines
13 Mar, 2026

Perilous lines

THE law minister’s veiled warning to the media to “exercise caution” and not cross “red lines” while...
Collective security
Updated 12 Mar, 2026

Collective security

Regional states need to sit down and talk. They must also pledge and work towards collective security.
Spectrum leap
12 Mar, 2026

Spectrum leap

THE sale of 480 MHz of fifth-generation telecom spectrum for $507m is a major milestone in Pakistan’s digital...
Toxic fallout
12 Mar, 2026

Toxic fallout

WARS can leave environmental scars that remain long after the fighting is over. The strikes on Iran’s oil...