Worlds apart

Planetary Solar System vs Oort Cloud

What are they, and what does the difference actually look like?

Two things. One honest scale.

Meet the pair

What these two things are

Planetary Solar System

The Solar System is the collection of the Sun and all objects gravitationally bound to it, including planets, moons, and smaller bodies.

60.22 AUDiameter

Oort Cloud

The Oort Cloud is a distant, roughly spherical shell of icy objects believed to surround the Solar System and supply long-period comets.

3.163 lyDiameter

Oort Cloud has about 3,320 times the diameter of Planetary Solar System.

Characteristic scale
ENLARGED ×1,170
01
Planetary Solar System60.22 AUDiameter
02
Oort Cloud3.163 lyDiameter
Inset ×1,170Planetary Solar System is too small to see clearly at this scale. The ring marks its position; only the inset is enlarged.
Measurements, assumptions & sources +

Planetary Solar System

A schematic diameter spanning Neptune’s orbit. The Solar System also includes much more distant bodies. The illustration is a boundary diagram; dots identify objects or regions and do not depict their physical diameters.

Defined examples — our methodology

The marked diameter is calibrated. Unmeasured illustration details are representative.

Oort Cloud

A conceptual 200,000 AU diameter corresponding to a 100,000 AU outer radius. This distant comet reservoir is inferred, with a very uncertain extent. The illustration is a boundary diagram; dots identify objects or regions and do not depict their physical diameters.

NASA — Oort Cloud facts

The marked diameter is calibrated. Unmeasured illustration details are representative.

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Measurement details

Why these numbers?

The visual compares diameter with diameter. The records below preserve each value’s basis and caveats.

Planetary Solar System

60.22 AU

Diameter · rounded reference

A schematic diameter spanning Neptune’s orbit. The Solar System also includes much more distant bodies. The illustration is a boundary diagram; dots identify objects or regions and do not depict their physical diameters.

Oort Cloud

3.163 ly

Diameter · approximate

A conceptual 200,000 AU diameter corresponding to a 100,000 AU outer radius. This distant comet reservoir is inferred, with a very uncertain extent. The illustration is a boundary diagram; dots identify objects or regions and do not depict their physical diameters.

Comparing
Diameter ↔ Diameter
Relative size
Oort Cloud is larger on this measurement by a factor of about 3,320.

How to read the visual

The labelled spans and stored measurements determine the scale; unmeasured illustration details do not.

  • Planetary Solar System is labelled rounded reference; treat the displayed value as a comparison anchor rather than false precision.
  • Oort Cloud is labelled approximate; treat the displayed value as a comparison anchor rather than false precision.

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