Styx (moon)
Pluto's moon Styx, as seen by the New Horizons spacecraft on 13 July 2015, from a distance of 632,000 km
Name of satellite Styx (P5)
Planet of origin Pluto
Discovered by Showalter, M. R. et al.
Date of discovery 26 June 2012

(verified 7 July 2012)

Styx is a small natural satellite of Pluto whose discovery was announced on 11 July 2012. It was imaged along with Pluto and Pluto's other moons by the New Horizons spacecraft in July 2015. Images of Styx, with a resolution of 3.1 km/px, were released on 9 October 2015.

Styx is the second satellite of Pluto by distance and the fifth discovered. It was discovered one year after Kerberos. Styx is approximately 7 × 5 km across, and its orbital period is 20.2 days.