S/2004 S 17

S/2004 S 17

Discovery
Discovered by	Sheppard et al.
Discovery date	2005
Orbital characteristics
Semi-major axis	18600000 km
Eccentricity	0.259
Orbital period (sidereal)	−986 days
Inclination	166.6°
Satellite of	Saturn
Group	Norse group?
Physical characteristics
Mean diameter	4+50% −30% km
Apparent magnitude	25.2

S/2004 S 17 is a natural satellite of Saturn. Its discovery was announced by Scott S. Sheppard, David C. Jewitt, Jan Kleyna, and Brian G. Marsden on May 4, 2005 from observations taken between December 13, 2004 and March 5, 2005. S/2004 S 17 is about 4 kilometres in diameter, and orbits Saturn at an average distance of 19,099 Mm in 985.453 days, at an inclination of 167° to the ecliptic (162° to Saturn's equator), in a retrograde direction and with an eccentricity of 0.226.

This moon has not been seen since its discovery and is currently considered lost.

References

• Institute for Astronomy Saturn Satellite Data
• Jewitt's New Satellites of Saturn page
• MPEC 2005-J13: Twelve New Satellites of Saturn May 3, 2005 (discovery and ephemeris)