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Moon of Jupiter — an irregular, distant moon

S/2021 J 2

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A moon of Jupiter.

At Jupiter.

Measured

Goes round once every
619 days
Distance from Jupiter
about 20,926,600 km (its orbit's average)
Orbit
backwards (retrograde), inclined 148°, eccentricity 0.242
JPL / NAIF id
55513

How far, from the Earth

About 5.27 AU. To cross it:

  • Light44 minutes
  • Voyager 1's speed17.8 months
  • Driving at 100 km/h899 years

Voyager 1 at the speed it moved outward over the year to 2026-10-25 (JPL Horizons). Driving: nonstop, never refuelling.

Facts

  • Its size is not well measured.

Where this comes from

  • Moons: JPL Planetary Satellite Mean Elements and Physical Parameters, paced to JPL Horizons. NASA/JPL-Caltech. Sizes JPL leaves out are estimates, mostly from brightness: Scott Sheppard's moon pages at Carnegie.

Every catalogue Ouranos draws is credited on the credits page.