planetary resources : precious metals , radioactive materials length of day : 9 hours atmospheric pressure : 1.5 , moderate , near dense atmospheric radiation , base : mild level : 0.9 atmospheric toxicity : trace toxins ( ammonia , methane ) average surface temperature : 25 c , 77 f axial tilt : 12 degrees climate range : mild , +/- 5 c , 41 f stats : planet f , redemption orbital distance : 0.15 au orbit : 39.08 days , 0.10 year gravity : 1.2 radius : 1.52 , 9697 km diameter : 3.04 , 19,394 km mass : 3.12 density : 0.5 composition : silicates , small metal core land : 45 % ice : 19 % liquid : 36 % moons : 2 a gravity : 1.3 diameter : 0.34 , 2,169km mass : 0.15 b gravity : 1.3 diameter : 0.4 , 2,552 km mass : 0.20 moon features : portions of moon b contain photo-luminescent aluminum particles , which causes the surface to glow at all times .