Juno spacecraft
Juno is a NASA spacecraft sent to study Jupiter’s atmosphere, magnetic field and structure, powered by three large solar arrays.
Also known as: Juno Jupiter spacecraft, Juno probe
How big is it?
20 m · deployed solar-array span
Deployed solar-array span · approximate
Typical recorded range: 19 m to 21 m.

A little perspective
Juno spacecraft vs Volleyball court: length comparison
The deployed solar-array span of the Juno spacecraft is about 2.22 times the width of a volleyball court.
Juno is a NASA spacecraft sent to study Jupiter’s atmosphere, magnetic field and structure, powered by three large solar arrays.
A volleyball court is the marked rectangular playing surface divided by a net for the team sport of volleyball.
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 +
Juno spacecraft
Deployed solar-array span: 20 m; approximate; range 19 m–21 m.
NASA’s Juno spacecraft spans approximately 20 m across its three deployed solar arrays and had a launch mass of about 3,625 kg. The span excludes the magnetometer boom beyond one array.
The marked deployed solar-array span is calibrated. Unmeasured illustration details are representative.
Volleyball court
Width: 9 m; standard.
18 × 9 m playing surface. Excludes surrounding space.
WA Government — volleyball dimensions
The marked width 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 20 m
We compare the deployed solar-array span of the Juno spacecraft. This is an estimate; check the notes for its rounding and uncertainty. The recorded range is 19 m to 21 m.
NASA’s Juno spacecraft spans approximately 20 m across its three deployed solar arrays and had a launch mass of about 3,625 kg. The span excludes the magnetometer boom beyond one array.
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 |
|---|---|---|---|
| 20 m | 19 m to 21 m | approximate | |
| 3.625 t | 3.6 t to 3.65 t | approximate |
Around this scale
Explore nearby values.
Compare examples with lower, similar and higher values. Each card names the measurement being compared.
Nearest lower valueSport and equipmentVolleyball court18 mLengthA volleyball court is the marked rectangular playing surface divided by a net for the team sport of volleyball.
Around the same scaleEveryday objects10 × 20 m garden20 mLengthA garden is an outdoor space where people cultivate plants, flowers or vegetables for pleasure, relaxation or food.
Nearest higher valuePlanets, moons and spaceJames Webb Space Telescope21.2 mDeployed sunshield lengthThe James Webb Space Telescope is an infrared observatory in space designed to study distant galaxies, stars and planetary systems.Sources and method
Want to check the number?
The source records and measurement method remain available for inspection.
- NASA — Juno spacecraftDeployed solar-array span, launch mass and instrument configuration.
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