UX-11 is notable for its five Chthonian planets and a habitable world…an extremely rare type of star system. It is located near Hanako's Nebula and Scrapyard System outside of the Ketsurui Military Sector. In YE 35, the Yamatai Star Empire laid claim to this star system.

In YE 41, this star system was conquered by forces from the Interstellar Kingdom Of Kuvexia during the Kuvexian Invasion of YE 41.

• B8 V Blue-white Main Sequence
• Radius 4.59 x 106 km (6.59 x sol)
• Mass 2.99 x 1031 kg (15.03 x sol)
• Temperature 13300 K
• Luminosity 8.36 x 1030 W (21844.63 x sol)

• Chthonian Planet
• Orbital Radius 3.65 x 108 km (2.44 AU)
• Period 8.61 x 103 hours (0.98 earth years)
• Gravity 22.22 m/s2 (2.27 x earth)

• Chthonian Planet
• Orbital Radius 5.93 x 108 km (3.97 AU)
• Period 1.78 x 104 hours (2.04 earth years)
• Gravity 28.36 m/s2 (2.90 x earth)

• Chthonian Planet
• Orbital Radius 8.10 x 108 km (5.41 AU)
• Period 2.84 x 104 hours (3.25 earth years)
• Gravity 27.03 m/s2 (2.76 x earth)

• Chthonian Planet
• Orbital Radius 1.24 x 109 km (8.28 AU)
• Period 5.37 x 104 hours (6.15 earth years)
• Gravity 10.95 m/s2 (1.12 x earth)

• Chthonian Planet
• Orbital Radius 2.02 x 109 km (13.52 AU)
• Period 1.12 x 105 hours (12.82 earth years)
• Gravity 16.68 m/s2 (1.71 x earth)

• Rock Planet
• Orbital Radius 3.91 x 109 km (26.13 AU)
• Period 3.01 x 105 hours (34.46 earth years)
• Gravity 36.35 m/s2 (3.72 x earth)
• Special Advanced alien artifact, trace atmosphere

• Rock Planet
• Orbital Radius 7.95 x 109 km (53.11 AU)
• Period 8.73 x 105 hours (99.82 earth years)
• Gravity 24.94 m/s2 (2.55 x earth)

• Rock Planet
• Orbital Radius 1.46 x 1010 km (97.31 AU)
• Period 2.16 x 106 hours (247.58 earth years)
• Gravity 20.09 m/s2 (2.05 x earth)

• Terrestrial World
• Orbital Radius 2.76 x 1010 km (184.75 AU)
• Period 5.66 x 106 hours (647.67 earth years)
• Physics Standard iron/silicate
• Gravity 7.43 m/s2 (0.76 x earth)
• Hydrosphere 21 % water, 35 % ice
• Atmosphere Standard breathable
• Biosphere Prokaryotic microbes

See: UX-11 IX