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
~1 min read
Encyclopedic overview
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.
Characteristics
Excerpted from Wikipedia’s “Eirene” article, available under the CC BY-SA 4.0 licence.