Neptune’s orbital distance
Neptune’s orbital distance is the average separation between Neptune and the Sun.
How big is it?
30.11 AU · distance
Distance · rounded reference
A little perspective
Neptune’s orbital distance vs Betelgeuse: length comparison
Neptune’s orbital distance is about 4.62 times the diameter of Betelgeuse.
Neptune’s orbital distance is the average separation between Neptune and the Sun.
Betelgeuse is a red supergiant star in the constellation Orion that changes in brightness over time.
Both rulers start at the same zero and share one linear scale. Artwork keeps its original proportions. A ruler represents the selected distance or a measurement not visible in this view.
Measurements, assumptions & sources +
Neptune’s orbital distance
Distance: 30.11 AU; rounded reference.
A rounded 30.11 AU semi-major-axis reference, not today’s distance.
Defined examples — our methodology
The marked distance is calibrated. Unmeasured illustration details are representative.
Betelgeuse
Diameter: 6.511 AU; rounded model.
A deliberately rounded red-supergiant model. Its apparent edge varies with wavelength and the star changes over time.
Defined examples — our methodology
The marked diameter is calibrated. Unmeasured illustration details are representative.
Use the visual comparison to explore its scale, then check the measurements and sources.
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Why this measurement?
Why we use 30.11 AU
We compare Neptune’s orbital distance. This is a rounded comparison value; check the notes for its source and scope.
A rounded 30.11 AU semi-major-axis reference, not today’s distance.
The marked horizontal span follows the measured feature, not the edges of the image. How calibrated comparisons work →
Recorded properties
Dimensions and measurements
| Property | Selected value | Recorded range | Basis |
|---|---|---|---|
| 30.11 AU | Not recorded | rounded reference |
Around this scale
Explore nearby values.
Compare examples with lower, similar and higher values. Each card names the measurement being compared.
Nearest lower valuePlanets, moons and spaceBetelgeuse6.511 AUDiameterBetelgeuse is a red supergiant star in the constellation Orion that changes in brightness over time.
Around the same scalePlanets, moons and spacePlanetary Solar System60.22 AUDiameterThe Solar System is the collection of the Sun and all objects gravitationally bound to it, including planets, moons, and smaller bodies.
Nearest higher valuePlanets, moons and spaceKuiper Belt outer orbit50 AUDistanceThe Kuiper Belt is a region of the Solar System beyond Neptune containing many icy bodies and dwarf planets.Sources and method
Want to check the number?
The source records and measurement method remain available for inspection.
More ways to see it
Curated comparisons
There’s always another scale
Follow your curiosity.
SpaceEarth–Sun distance1 AUThe Earth–Sun distance, or astronomical unit, is the standard measure of separation between Earth and the Sun used in astronomy.
SpaceMilky Way30.66 kpcThe Milky Way is a spiral galaxy containing hundreds of billions of stars, including our Solar System.
SpaceObservable universe28.21 GpcThe observable universe is the region from which light or other signals have had time to reach us since the early universe.SpaceBetelgeuse6.511 AUBetelgeuse is a red supergiant star in the constellation Orion that changes in brightness over time.SpaceKuiper Belt outer orbit50 AUThe Kuiper Belt is a region of the Solar System beyond Neptune containing many icy bodies and dwarf planets.SpacePlanetary Solar System60.22 AUThe Solar System is the collection of the Sun and all objects gravitationally bound to it, including planets, moons, and smaller bodies.SpaceRed giant0.465 AUA red giant is a star that has expanded and cooled after exhausting the hydrogen in its core.
SpaceSirius A2,379,000 kmSirius A is the brighter main-sequence star in the Sirius binary system.