100 astronomical units
100 AULength · definition
The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.
Length & distance
Just how long is 100 astronomical units?
Solar neighbourhood
100 AU
100 astronomical units
The quantity is exact as entered.
100 AULength
0 - shared origin
Neptune’s orbital distance
Neptune’s orbital distance is the average separation between Neptune and the Sun.
30.11 AUDistance
0 - shared origin
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.
A little perspective
100 astronomical units is about 3.32 times Neptune’s orbital distance.
Measurements, assumptions & sources +
100 astronomical units
Length: 100 AU; definition.
The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.
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.
Measurement details
Why these numbers?
Compare 100 astronomical units with Neptune’s orbital distance. The notes below explain how each value was chosen.
Neptune’s orbital distance
30.11 AUDistance · rounded reference
A rounded 30.11 AU semi-major-axis reference, not today’s distance.
- Comparing
- Length ↔ Distance
- Relative size
- 100 astronomical units is about 3.32 times Neptune’s orbital distance. 100 astronomical units is approximately 232% greater than Neptune’s orbital distance.
How to read the visual
The diagram uses the recorded measurements. Details outside the marked spans do not set the scale.
- Neptune’s orbital distance: This is a rounded comparison value; check the notes for its source and scope.
This comparison follows the selected length only; other dimensions may differ.
1.496 × 10¹³ mmetres
4.9081 × 10¹³ ftfeet
9.2956 × 10⁹ mimiles
0.0015813 lylight-years
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