Image: Wikimedia Commons

Amalthea

Moon of Jupiter

Also known as Jupiter V · Amalthea (moon)

Orbits: Jupiter
Mass: 2.1 zettagram
1
Sources
1.ssd.jpl.nasa.gov/?sat_phys_parRetrieved 2020-09-05
View statement on Wikidata ↗
Radius: 83.45 km
1
Sources
1.Stated in NASA FACTSssd.jpl.nasa.gov/?sat_phys_par
View statement on Wikidata ↗
Orbital period: 0.4982 days
1
Sources
1.Stated in NASA FACTSssd.jpl.nasa.gov/?sat_phys_par
View statement on Wikidata ↗
Semi-major axis: 181,400 km
1
Sources
1.nssdc.gsfc.nasa.gov/planetary/factsheet/joviansatfact.html
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Discovered by: Edward Emerson Barnard
1
Sources
1.Stated in A Short History of Astronomy
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Discovered: September 9, 1892
1
Sources
1.Stated in A Short History of Astronomy
View statement on Wikidata ↗

Overview

From Wikipedia, the free encyclopedia · Read full article · Text CC BY-SA 4.0

Amalthea is a moon of Jupiter. It has the third-closest orbit around Jupiter among known moons and was the fifth moon of Jupiter to be discovered, so it is also known as Jupiter V. It is also the fifth-largest moon of Jupiter, after the four Galilean moons. Edward Emerson Barnard discovered the moon on 9 September 1892 and named it after Amalthea of Greek mythology. It was the last natural satellite to be discovered by direct visual observation; all later moons were discovered by photographic or digital imaging.

Overview

All data

34 statements · 32% with external sources · numbers in brackets are citations

Named after: Amalthea
Site of astronomical discovery: Lick Observatory
Periapsis: 181,150 km
Apoapsis: 182,840 km
Eccentricity: 0.00319
1
Sources
1.dx.doi.org/10.1016%2Fj.icarus.2005.11.007
View statement on Wikidata ↗
Apparent magnitude: 14.1 astronomical filter: V band
Albedo: 0.09
Inclination: 0.374 degree
Volume as quantity: 2,430,000 cubic kilometre
1
Sources
1.Stated in NASA FACTSssd.jpl.nasa.gov/?sat_phys_par
View statement on Wikidata ↗

On other databases

14 identifiers linking Amalthea across the web's reference databases

Data quality

statements

32%

externally sourced

Source last edited July 18, 2026. AIDB refreshes this page daily.

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AIDB. (2026). Amalthea (Q3257). Retrieved from https://aidb.si/e/amalthea-Q3257