Links
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- Solar System on Wikipedia
Solar System
Details
The Solar System’s main planetary span extends from the Sun out to Neptune’s orbit, not to its far larger comet reservoirs. Beyond the planets it continues through the Kuiper Belt and, much farther out, the Oort Cloud, so the familiar planetary layout is only the compact inner start of the Sun’s domain.
The Solar System is often pictured as a tidy row of planets, but that image captures only the dense inner core of the Sun’s domain. The planets are the most familiar parts, yet they are only the beginning of a much larger gravitational neighborhood.
Beyond Neptune, the system opens into the Kuiper Belt and then into much more diffuse reservoirs of icy bodies and comet material, so the edge of the Solar System is not a single line. It is a set of layers that fade outward into colder, looser structure.
That is what makes the Solar System more interesting than a classroom diagram. It is the full environment built by one star and the material left over from its formation, and once you see it that way the familiar planetary layout becomes only the inner neighborhood of something much larger.
3.34billion km
Visual creditscaleofspace.org / CC BY-NC 4.0
Key facts
- Scale fact
- 9 billion kmorbital diameter
- Estimated age
- ~4.6 billion years
Scale context
Where Solar System sits on the full axis
By size on the journey, Solar System sits between VY Canis Majoris and Kuiper Belt. The band below uses nearby Planetary systems objects for context.
Shared physical scale
2.06ly
Together, these objects make the size change around Solar System easy to compare at a glance.
Between the smallest and the largest, perspective is everything.
About
Scale of Space is a scroll-based journey through the universe, placing objects on a single logarithmic scale so you can compare size across an unbroken range.
Guides turn parts of that scale into curated essays, while focused views let you explore the same range through specific groups of objects.