Solar System / Scale

99.8% of the Solar System Is the Sun — Everything Else Is a Rounding Error

2026-10-11
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All eight planets combined? That's 0.2% of our solar system.

All eight planets combined — plus every moon, every asteroid, every comet ever catalogued — adds up to just 0.2% of our solar system's total mass. The other 99.8% is a single object: the Sun.

Think about what that means. Jupiter, the largest planet by far, is an afterthought. Earth is a speck of dust on the scales. Around 1.3 million Earths could fit inside the Sun by volume, and even then you'd barely made a dent.

None of this is decoration. The Sun's colossal mass is what curves space enough to hold every planet in orbit. Without that gravitational grip, the solar system simply scatters.

We call it a solar system, but really it's a star — with a thin haze of leftovers circling it. Follow Deep Field Vault and we'll keep the universe honest.

0.2%

  • Every planet
  • Every moon
  • Every asteroid & comet

99.8%

  • Just the Sun

Volume check

  • ~1.3 million Earths
  • fit inside the Sun

Why orbits exist

  • The Sun's mass
  • curves space itself

It's not a solar system

  • It's a star
  • with leftovers
Imagery: NASA (public domain) · View original on NASA ↗
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