The Sun Contains 99.86% of All the Mass in Our Entire Solar System

When you imagine the solar system, you probably picture the Sun and a series of planets. The image gives a misleading impression of mass. In reality, almost everything in our solar system is the Sun.

By mass:

• The Sun: 99.86%
• Jupiter: 0.095%
• Saturn: 0.028%
• Everything else combined: ~0.013%

How Big Is the Sun, Really?

• Diameter: 1.39 million km — over 100 Earths across
• You could fit 1.3 million Earths inside the Sun
• The Sun's gravity is so strong that Earth orbits it at 30 km/s — and never escapes
• Surface temperature: 5,500°C; core: 15 million°C
• Light from the Sun takes 8 minutes 20 seconds to reach Earth

The Sun in Action

Every second, the Sun converts about 4 million tons of mass into pure energy through nuclear fusion. That's the equivalent mass of 30 Empire State Buildings — vanishing into light, every second, for the past 4.6 billion years.

Even with this rate of consumption, the Sun has another 5 billion years of fuel before it begins to die. Cosmic-scale numbers, but they make our place in the system clearer: we live inside the gravitational hum of one tiny star, and everything we know is a footnote to its mass.