Key facts
- Discovered by
- Scott Sheppard et al.
- Designation
- Jupiter LVII
- Pronunciation
- / aɪ ˈ r iː n iː /
- Named after
- Εἰρήνη Eirēnē
- Alternative names
- S/2003 J 5
- Adjectives
- Eirenean / aɪ r ɪ ˈ n iː ə n /
- Observation arc
- 21 years, 2024-12-03 (last obs)
- Semi major axis
- 23 731 770 km
- Orbital period sidereal
- −743.88 days , (2.038 years)
- Inclination
- 162.713° (to the ecliptic)
- Satellite of
- Jupiter
- Group
- Carme group
- Mean diameter
- 4 km
- Absolute magnitude h
- 15.79 (46 obs)
via Wikipedia infobox
Wikidata facts
- Diameter
- 4
- Orbital period
- -743.88
Show 8 more facts
- time of discovery or invention
- 2003-02-06
- provisional designation
- S/2003 J 5
- albedo
- 0.04
- orbital eccentricity
- 0.210
- semi-major axis of an orbit
- 23973947
- apparent magnitude
- 22.4
- orbital inclination
- 163.1
- name
- Jupiter LVII
Sources (2)
via Wikidata · CC0
~1 min read
Article
Eirene /aɪˈriːniː/, also Jupiter LVII and originally known as S/2003 J 5, is a retrograde irregular satellite of Jupiter. It was discovered by a team of astronomers from the University of Hawaiʻi led by Scott S. Sheppard in 2003 but was then lost. It was recovered in 2017 and given its permanent designation that year.
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