File:N1643264379_1.jpg · Wikimedia Commons · See Wikimedia Commons
Key facts
- Discovered by
- Carolyn Porco
- Discovery date
- March 3, 2009 ( 2009-03-03 )
- Detection method
- Cassini Imaging Science Team
- Designation
- Saturn LIII
- Pronunciation
- / iː ˈ dʒ iː ɒ n /
- Named after
- Αιγαίων Aigaiōn
- Adjectives
- Aegaeonian / iː dʒ iː ˈ oʊ n i ə n /
- Semi major axis
- 167 494 ± 4 km
- Eccentricity
- 0.000 24 ± 0.000 23
- Orbital period sidereal
- 0.808111 d
- Inclination
- 0.0010° ± 0.0009° (to Saturn's equator)
- Satellite of
- Saturn
- Dimensions
- 1.40 × 0.50 × 0.40 km, (± 0.10 × 0.12 × 0.16 km)
- Mean diameter
- 0.66 ± 0.12 km
- Volume
- 0.15 km
- Mass
- (7.82 ± 3.00) × 10 kg
- Mean density
- 0.539 ± 0.140 g/cm
- Surface gravity
- 0.009–0.013 mm/s , (0.9–1.3 micro- g )
via Wikipedia infobox
Wikidata facts
- Diameter
- 0.66
- Mass
- 60
- Orbital period
- 0.80812
- Image
- N1643264379 1.jpg
Show 8 more facts
- Commons category
- Aegaeon (moon)
- albedo
- 0.15
- density
- 0.54
- time of discovery or invention
- 2008-08-15
- provisional designation
- S/2008 S 1
- orbital eccentricity
- 0.00042277
- semi-major axis of an orbit
- 167493.665
- orbital inclination
- 0.0007
via Wikidata · CC0
~3 min read
Article
Aegaeon /iːˈdʒiːɒn/, or Saturn LIII (provisional designation S/2008 S 1), is a natural satellite of Saturn. It has an extremely elongated shape whose surface is thought to be similarly smooth as Methone. It orbits between Janus and Mimas within Saturn's G Ring, in a 7:6 orbital resonance with the latter. Compared to the similar moons Anthe and Methone, which are both in orbital resonances with Mimas, Aegaeon is more tightly trapped in its resonance than the other two. In addition, all three of the moons are associated with arc structures formed from material blasted off their surfaces, but Aegaeon is the smallest among the three while its arc is the brightest.
Discovery and naming