Thebe
Thebe is a small, irregular inner moon of Jupiter that orbits close to the planet within its ring system.
Also known as: Jupiter XIV, Thebe moon
How big is it?
98.6 km across
Mean-equivalent diameter · approximate
Typical recorded range: 90 km to 110 km.

A little perspective
About the same scale as One-hour drive at 100 km/h.
One-hour drive at 100 km/h: A one-hour drive at a set speed is the distance a vehicle travels in one hour of uninterrupted motion.
Measurements, assumptions & sources +
Thebe
Jupiter moon Thebe is highly irregular, approximately 116 x 98 x 84 km. A 98.6 km mean-equivalent diameter is used for scale comparison; its mass is a model-dependent approximate value.
NASA JPL — Planetary satellite physical parameters
The marked mean-equivalent diameter is calibrated. Unmeasured illustration details are representative.
One-hour drive at 100 km/h
A defined distance at a constant speed, excluding delays.
Defined examples — our methodology
The marked distance is calibrated. Unmeasured illustration details are representative.
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Why this measurement?
Why we use 98.6 km
For comparison, this page uses mean-equivalent diameter. This is labelled approximate; the central value is useful for comparison, while real values or measurement solutions can vary. The recorded range is 90 km to 110 km.
Jupiter moon Thebe is highly irregular, approximately 116 x 98 x 84 km. A 98.6 km mean-equivalent diameter is used for scale comparison; its mass is a model-dependent approximate value.
The marked horizontal span follows the named feature; transparent margins and unmeasured details do not alter it. How calibrated comparisons work →
Recorded properties
Thebe dimensions and measurements
| Property | Selected value | Recorded range | Basis |
|---|---|---|---|
| 98.6 km | 90 km to 110 km | approximate | |
| 4.3 × 10¹⁴ t | 3 × 10¹⁴ t to 6 × 10¹⁴ t | approximate |
Around this scale
Go smaller. Go bigger.
These links use compatible length records, ordered around the selected value.
Nearest lower value · PlacesYellowstone Caldera70 kmThe Yellowstone Caldera is a large volcanic collapse structure within Yellowstone National Park in the United States.
Nearest higher value · SpaceAmalthea167 kmAmalthea is an irregularly shaped moon of Jupiter with a reddish surface and prominent craters.Sources and method
Want to check the number?
The source records and measurement method remain available for inspection.
- NASA JPL — Planetary satellite physical parametersPublished mean radii and gravitational parameters GM. Spherical areas, volumes, masses and local gravity are explicitly derived.
There’s always another scale




