S/2007 S 2

S/2007 S 2 also known as "Alejandra" 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 1, 2007, from observations taken between January 18 and April 19, 2007. S/2007 S 2 is about 6 kilometres in diameter, and orbits Saturn at an average distance of 16,560,000 kilometres in 792.96 days, at an inclination of 176.68° to the ecliptic, in a retrograde direction and with an eccentricity of 0.218.

References

• Institute for Astronomy Saturn Satellite Data
• MPEC 2007-J09: S/2007 S 2, S/2007 S 3 May 1, 2007 (discovery and ephemeris)
• IAUC 8836: S/2007 S 1, S/2007 S 2, and S/2007 S 3 (subscription-only) May 11, 2007 (discovery)