1 gigaparsec
1 GpcLength · definition
The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.
Length & distance
Just how long is 1 gigaparsec?
Deep space
1 Gpc
1 gigaparsec
The quantity is exact as entered.
1 GpcLength
0 - shared origin
Laniakea-scale region
Laniakea is a vast region of interconnected galaxy clusters defined by shared gravitational flows.
159.4 MpcDiameter
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
1 gigaparsec is about 6.27 times the diameter of a Laniakea-scale region.
Measurements, assumptions & sources +
1 gigaparsec
Length: 1 Gpc; definition.
The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.
Laniakea-scale region
Diameter: 159.4 Mpc; rounded reference.
An illustrative 520 million light-year span for a large-scale galaxy-flow region; boundaries depend on the model.
Defined examples — our methodology
The marked diameter is calibrated. Unmeasured illustration details are representative.
Measurement details
Why these numbers?
Compare 1 gigaparsec with the diameter of a Laniakea-scale region. The notes below explain how each value was chosen.
Laniakea-scale region
159.4 MpcDiameter · rounded reference
An illustrative 520 million light-year span for a large-scale galaxy-flow region; boundaries depend on the model.
- Comparing
- Length ↔ Diameter
- Relative size
- 1 gigaparsec is about 6.27 times the diameter of a Laniakea-scale region. 1 gigaparsec is approximately 527% greater than the diameter of a Laniakea-scale region.
How to read the visual
The diagram uses the recorded measurements. Details outside the marked spans do not set the scale.
- The diameter of a Laniakea-scale region: 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.
3.0857 × 10²⁵ mmetres
1.0124 × 10²⁶ ftfeet
1.9174 × 10²² mimiles
2.0626 × 10¹⁴ AUastronomical units
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