What is Styx (moon)?
{{Infobox planet | width = | name = Styx | symbol = | background = | image = Pluto moon P5 discovery with moons' orbits.jpg | caption = [[Hubble Space Telescope]] discovery image of <br />S/2012 (134340) 1 (encircled) with the outer<br /> moons' orbits shown. Compared to the other bodies, Pluto <br /> and Charon are shown greatly reduced in brightness. | apsis = | discovery_ref = | discoverer = [[Mark R. Showalter|Showalter, M. R.]] ''and others''<ref name=nasa2 /> | discovery_site = | discovered = {{plainlist | * June 26, 2012<ref name=nasa2 /> * (verified 7 July 2012) }} | discovery_method = Photographic<ref name=nasa2 /> | mp_name = | pronounce = | named_after = | mp_category = | alt_names = | orbit_ref = | epoch = | aphelion = | perihelion = | periastron = | apoastron = | periapsis = | apoapsis = | semimajor = | mean_orbit_radius = {{convert|42000|km|mi|abbr=on}} ± {{convert|2000|km|mi|abbr=on}} | eccentricity = ≈ 0 | period = 20.2 ± 0.1 days | synodic_period = | avg_speed = | mean_anomaly = | inclination = ≈ 0 | angular_dist = | asc_node = | long_periastron = | time_periastron = | arg_peri = | semi-amplitude = | satellite_of = Pluto | satellites = | dimensions = | flattening = | equatorial_radius = | polar_radius = | mean_radius = {{convert|5|–|12.5|km|0|abbr=on}} | circumference = | surface_area = | volume = | mass = | density = | surface_grav = | escape_velocity = | sidereal_day = | rot_velocity = | axial_tilt = | right_asc_nor