Siothum

Siothum

Type	planet
Mass	5.55 × 1024 kg
Mean radius	6.22 × 106 m
Prolateness	0.142 (flattening: -0.142)
Siderial day	20,149.0 sec (5 h : 35 m : 49 s)
Synodic day	20,161.8 sec (5 h : 36 m : 02 s)
Direction of rotation	prograde (same direction as orbit)
Orbital period (around star)	31,754,824 sec (367.53 Earth days) 1,575 mios
Orbital radius (around star)	150.23 × 109 m
Axial tilt	22.9°

Siothum (ipa: /siˈoθum/) is an outer planet in the Eithalica system. It is loosely called a “moon.”