Encyclopedia Entry #6 – Aegaeon

Aegaeon is a tiny moon of Saturn, and is also known as Saturn LIII or S/2008 S 1.  It was discovered by the Cassini team on August 15, 2008.

640px-Aegaeon_(2008_S1)
This series of images shows the movement of Aegaeon to the right of the ring.

Data

  • Dimensions: about 500 m
  • Mass: unknown
  • Density: unknown
  • Surface gravity: unknown
  • Albedo: unknown
  • Temperature: unknown
  • Mean orbital radius: 167,500 km
  • Orbital period: 0.80812 d
  • Inclination: 0.001°
  • Eccentricity: 0.0002

Name Origin

Aegaeon was named after Aegaeon, one of the Hekatonkheires, which were the children of Gaia and Uranus.  They were seen as hideous monsters by Uranus and thrown into Tartarus.  Later, Zeus rescued them and thought they would be good allies in the fight against the Titans.  They were giants with 100 hands and 50 heads, and could throw 100 mountain-sized rocks at one time.

5 Interesting Facts

1. It orbits within the G ring of Saturn and is probably a major contributor to it.

2. It orbits in a 7:6 resonance with Mimas.

3. It’s the second smallest known moon of Saturn and second smallest in the solar system.

4. Although it’s suggested it’s 500 m in diameter, it hasn’t been measured.  The size is based on the assumption that its albedo is similar to Pallene’s.

5. In mythology, Aegaeon was also known as Briareus.

Due to the lack of information about this moonlet, the interesting facts were not very interesting.

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