| U-JC8X I |  Barren | 0 | 4,500 km | 35°C | 0.41g | 0.437 AU |
| U-JC8X II |  Storm | 1 | 5,030 km | -130°C | 0.41g | 0.812 AU |
| Moon | Radius | Temp | Gravity | Mass | Distance |
|---|
| U-JC8X II - Moon 1 | 470 km | -130°C | 0.02g | 5.4 × 10²⁰ kg | 319,150 km |
|
| U-JC8X III |  Temperate | 1 | 5,030 km | 5°C | 0.53g | 1.19 AU |
| Moon | Radius | Temp | Gravity | Mass | Distance |
|---|
| U-JC8X III - Moon 1 | 510 km | -155°C | 0.02g | 6.6 × 10²⁰ kg | 222,750 km |
|
| U-JC8X IV |  Gas | 13 | 71,100 km | -219°C | 3.87g | 5.751 AU |
| Moon | Radius | Temp | Gravity | Mass | Distance |
|---|
| U-JC8X IV - Moon 1 | 570 km | -219°C | 0.01g | 6.1 × 10²⁰ kg | 206,158 km | | U-JC8X IV - Moon 2 | 130 km | -219°C | 0g | 4.0 × 10¹⁸ kg | 261,486 km | | U-JC8X IV - Moon 3 | 390 km | -219°C | 0.01g | 1.7 × 10²⁰ kg | 298,787 km | | U-JC8X IV - Moon 4 | 1,030 km | -219°C | 0.03g | 4.6 × 10²¹ kg | 510,822 km | | U-JC8X IV - Moon 5 | 1,150 km | -219°C | 0.03g | 6.6 × 10²¹ kg | 739,684 km | | U-JC8X IV - Moon 6 | 600 km | -219°C | 0.01g | 7.4 × 10²⁰ kg | 906,276 km | | U-JC8X IV - Moon 7 | 1,550 km | -219°C | 0.05g | 1.8 × 10²² kg | 1,097,320 km | | U-JC8X IV - Moon 8 | 930 km | -219°C | 0.03g | 3.3 × 10²¹ kg | 1,255,990 km | | U-JC8X IV - Moon 9 | 2,260 km | -219°C | 0.09g | 6.7 × 10²² kg | 1,901,030 km | | U-JC8X IV - Moon 10 | 4,220 km | -219°C | 0.22g | 5.7 × 10²³ kg | 3,308,510 km | | U-JC8X IV - Moon 11 | 2,360 km | -219°C | 0.09g | 7.7 × 10²² kg | 4,018,420 km | | U-JC8X IV - Moon 12 | 4,860 km | -219°C | 0.26g | 9.2 × 10²³ kg | 7,338,560 km | | U-JC8X IV - Moon 13 | 1,650 km | -219°C | 0.06g | 2.3 × 10²² kg | 13,818,500 km |
|
| U-JC8X V | Gas | 3 | 15,720 km | -235°C | 0.85g | 11.503 AU |
| Moon | Radius | Temp | Gravity | Mass | Distance |
|---|
| U-JC8X V - Moon 1 | 320 km | -235°C | 0g | 7.1 × 10¹⁹ kg | 345,854 km | | U-JC8X V - Moon 2 | 850 km | -235°C | 0.02g | 2.0 × 10²¹ kg | 1,302,300 km | | U-JC8X V - Moon 3 | 1,270 km | -235°C | 0.03g | 7.7 × 10²¹ kg | 3,697,730 km |
|
| U-JC8X VI |  Ice | 6 | 15,250 km | -248°C | 0.91g | 25.95 AU |
| Moon | Radius | Temp | Gravity | Mass | Distance |
|---|
| U-JC8X VI - Moon 1 | 290 km | -248°C | 0g | 4.2 × 10¹⁹ kg | 146,655 km | | U-JC8X VI - Moon 2 | 500 km | -248°C | 0.01g | 2.6 × 10²⁰ kg | 537,089 km | | U-JC8X VI - Moon 3 | 950 km | -248°C | 0.02g | 2.3 × 10²¹ kg | 1,018,410 km | | U-JC8X VI - Moon 4 | 1,460 km | -248°C | 0.03g | 9.9 × 10²¹ kg | 1,735,750 km | | U-JC8X VI - Moon 5 | 2,960 km | -248°C | 0.09g | 1.1 × 10²³ kg | 4,097,780 km | | U-JC8X VI - Moon 6 | 2,930 km | -248°C | 0.08g | 1.1 × 10²³ kg | 11,365,500 km |
|