| GBT4-J I |  Barren | 0 | 3,280 km | 196°C | 0.2g | 0.356 AU |
| GBT4-J II |  Plasma | 0 | 1,830 km | 117°C | 0.2g | 0.514 AU |
| GBT4-J III |  Storm | 1 | 4,480 km | 83°C | 0.69g | 0.618 AU |
| Moon | Radius | Temp | Gravity | Mass | Distance |
|---|
| GBT4-J III - Moon 1 | 210 km | 83°C | 0.01g | 6.3 × 10¹⁹ kg | 167,217 km |
|
| GBT4-J IV |  Gas | 16 | 36,240 km | -73°C | 1.21g | 1.961 AU |
| Moon | Radius | Temp | Gravity | Mass | Distance |
|---|
| GBT4-J IV - Moon 1 | 200 km | -73°C | 0.01g | 3.7 × 10¹⁹ kg | 79,221 km | | GBT4-J IV - Moon 2 | 170 km | -73°C | 0g | 2.2 × 10¹⁹ kg | 108,176 km | | GBT4-J IV - Moon 3 | 210 km | -73°C | 0.01g | 4.2 × 10¹⁹ kg | 126,395 km | | GBT4-J IV - Moon 4 | 420 km | -73°C | 0.02g | 4.5 × 10²⁰ kg | 178,612 km | | GBT4-J IV - Moon 5 | 180 km | -73°C | 0.01g | 2.6 × 10¹⁹ kg | 217,135 km | | GBT4-J IV - Moon 6 | 360 km | -73°C | 0.01g | 2.8 × 10²⁰ kg | 235,616 km | | GBT4-J IV - Moon 7 | 150 km | -73°C | 0g | 1.5 × 10¹⁹ kg | 281,364 km | | GBT4-J IV - Moon 8 | 480 km | -73°C | 0.02g | 7.3 × 10²⁰ kg | 329,577 km | | GBT4-J IV - Moon 9 | 610 km | -73°C | 0.03g | 1.6 × 10²¹ kg | 376,092 km | | GBT4-J IV - Moon 10 | 290 km | -73°C | 0.01g | 1.3 × 10²⁰ kg | 442,402 km | | GBT4-J IV - Moon 11 | 720 km | -73°C | 0.04g | 2.8 × 10²¹ kg | 556,483 km | | GBT4-J IV - Moon 12 | 930 km | -73°C | 0.05g | 6.8 × 10²¹ kg | 643,159 km | | GBT4-J IV - Moon 13 | 1,320 km | -73°C | 0.09g | 2.3 × 10²² kg | 946,767 km | | GBT4-J IV - Moon 14 | 1,380 km | -73°C | 0.09g | 2.7 × 10²² kg | 1,314,080 km | | GBT4-J IV - Moon 15 | 850 km | -73°C | 0.05g | 5.0 × 10²¹ kg | 1,551,820 km | | GBT4-J IV - Moon 16 | 1,090 km | -73°C | 0.07g | 1.2 × 10²² kg | 2,243,870 km |
|
| GBT4-J V | Gas | 7 | 22,350 km | -131°C | 0.92g | 3.893 AU |
| Moon | Radius | Temp | Gravity | Mass | Distance |
|---|
| GBT4-J V - Moon 1 | 200 km | -131°C | 0g | 3.0 × 10¹⁹ kg | 74,560 km | | GBT4-J V - Moon 2 | 240 km | -131°C | 0.01g | 5.5 × 10¹⁹ kg | 106,607 km | | GBT4-J V - Moon 3 | 280 km | -131°C | 0.01g | 9.8 × 10¹⁹ kg | 166,996 km | | GBT4-J V - Moon 4 | 820 km | -131°C | 0.04g | 3.6 × 10²¹ kg | 409,049 km | | GBT4-J V - Moon 5 | 1,430 km | -131°C | 0.08g | 2.5 × 10²² kg | 1,027,570 km | | GBT4-J V - Moon 6 | 1,460 km | -131°C | 0.08g | 2.6 × 10²² kg | 1,751,180 km | | GBT4-J V - Moon 7 | 930 km | -131°C | 0.04g | 5.6 × 10²¹ kg | 3,124,410 km |
|
| GBT4-J VI | Gas | 27 | 38,730 km | -165°C | 1.66g | 6.694 AU |
| Moon | Radius | Temp | Gravity | Mass | Distance |
|---|
| GBT4-J VI - Moon 1 | 230 km | -165°C | 0.01g | 4.5 × 10¹⁹ kg | 103,569 km | | GBT4-J VI - Moon 2 | 210 km | -165°C | 0g | 3.0 × 10¹⁹ kg | 165,693 km | | GBT4-J VI - Moon 3 | 450 km | -165°C | 0.01g | 4.0 × 10²⁰ kg | 236,539 km | | GBT4-J VI - Moon 4 | 170 km | -165°C | 0g | 1.6 × 10¹⁹ kg | 271,679 km | | GBT4-J VI - Moon 5 | 200 km | -165°C | 0g | 2.5 × 10¹⁹ kg | 293,044 km | | GBT4-J VI - Moon 6 | 430 km | -165°C | 0.01g | 3.4 × 10²⁰ kg | 308,864 km | | GBT4-J VI - Moon 7 | 140 km | -165°C | 0g | 8.2 × 10¹⁸ kg | 376,238 km | | GBT4-J VI - Moon 8 | 120 km | -165°C | 0g | 5.3 × 10¹⁸ kg | 403,425 km | | GBT4-J VI - Moon 9 | 670 km | -165°C | 0.02g | 1.6 × 10²¹ kg | 442,053 km | | GBT4-J VI - Moon 10 | 570 km | -165°C | 0.02g | 8.9 × 10²⁰ kg | 496,891 km | | GBT4-J VI - Moon 11 | 130 km | -165°C | 0g | 6.6 × 10¹⁸ kg | 558,790 km | | GBT4-J VI - Moon 12 | 1,180 km | -165°C | 0.05g | 1.1 × 10²² kg | 819,049 km | | GBT4-J VI - Moon 13 | 450 km | -165°C | 0.01g | 4.1 × 10²⁰ kg | 1,030,840 km | | GBT4-J VI - Moon 14 | 1,230 km | -165°C | 0.06g | 1.3 × 10²² kg | 1,112,790 km | | GBT4-J VI - Moon 15 | 540 km | -165°C | 0.02g | 7.6 × 10²⁰ kg | 1,291,240 km | | GBT4-J VI - Moon 16 | 740 km | -165°C | 0.03g | 2.2 × 10²¹ kg | 1,496,820 km | | GBT4-J VI - Moon 17 | 1,720 km | -165°C | 0.09g | 3.9 × 10²² kg | 1,866,720 km | | GBT4-J VI - Moon 18 | 1,890 km | -165°C | 0.1g | 5.4 × 10²² kg | 2,316,970 km | | GBT4-J VI - Moon 19 | 1,780 km | -165°C | 0.09g | 4.4 × 10²² kg | 2,673,810 km | | GBT4-J VI - Moon 20 | 1,110 km | -165°C | 0.05g | 8.8 × 10²¹ kg | 3,159,340 km | | GBT4-J VI - Moon 21 | 1,830 km | -165°C | 0.1g | 4.8 × 10²² kg | 3,534,320 km | | GBT4-J VI - Moon 22 | 2,490 km | -165°C | 0.15g | 1.4 × 10²³ kg | 4,165,310 km | | GBT4-J VI - Moon 23 | 1,020 km | -165°C | 0.04g | 6.5 × 10²¹ kg | 4,942,540 km | | GBT4-J VI - Moon 24 | 1,500 km | -165°C | 0.07g | 2.5 × 10²² kg | 5,898,130 km | | GBT4-J VI - Moon 25 | 1,580 km | -165°C | 0.08g | 2.9 × 10²² kg | 6,780,470 km | | GBT4-J VI - Moon 26 | 500 km | -165°C | 0.02g | 6.0 × 10²⁰ kg | 9,033,590 km | | GBT4-J VI - Moon 27 | 140 km | -165°C | 0g | 8.4 × 10¹⁸ kg | 10,557,700 km |
|
| GBT4-J VII | Gas | 19 | 35,490 km | -195°C | 1.3g | 12.771 AU |
| Moon | Radius | Temp | Gravity | Mass | Distance |
|---|
| GBT4-J VII - Moon 1 | 140 km | -195°C | 0g | 7.2 × 10¹⁸ kg | 194,566 km | | GBT4-J VII - Moon 2 | 120 km | -195°C | 0g | 4.5 × 10¹⁸ kg | 223,982 km | | GBT4-J VII - Moon 3 | 310 km | -195°C | 0.01g | 9.1 × 10¹⁹ kg | 420,055 km | | GBT4-J VII - Moon 4 | 370 km | -195°C | 0.01g | 1.8 × 10²⁰ kg | 653,982 km | | GBT4-J VII - Moon 5 | 350 km | -195°C | 0.01g | 1.5 × 10²⁰ kg | 839,588 km | | GBT4-J VII - Moon 6 | 650 km | -195°C | 0.02g | 1.2 × 10²¹ kg | 1,080,850 km | | GBT4-J VII - Moon 7 | 670 km | -195°C | 0.02g | 1.3 × 10²¹ kg | 1,423,680 km | | GBT4-J VII - Moon 8 | 800 km | -195°C | 0.03g | 2.4 × 10²¹ kg | 2,062,770 km | | GBT4-J VII - Moon 9 | 980 km | -195°C | 0.03g | 4.7 × 10²¹ kg | 2,453,520 km | | GBT4-J VII - Moon 10 | 400 km | -195°C | 0.01g | 2.2 × 10²⁰ kg | 2,895,120 km | | GBT4-J VII - Moon 11 | 1,190 km | -195°C | 0.04g | 9.2 × 10²¹ kg | 3,147,810 km | | GBT4-J VII - Moon 12 | 720 km | -195°C | 0.02g | 1.7 × 10²¹ kg | 4,156,680 km | | GBT4-J VII - Moon 13 | 1,560 km | -195°C | 0.06g | 2.4 × 10²² kg | 4,771,970 km | | GBT4-J VII - Moon 14 | 1,160 km | -195°C | 0.04g | 8.5 × 10²¹ kg | 6,184,370 km | | GBT4-J VII - Moon 15 | 1,410 km | -195°C | 0.06g | 1.7 × 10²² kg | 7,867,070 km | | GBT4-J VII - Moon 16 | 1,190 km | -195°C | 0.04g | 9.3 × 10²¹ kg | 11,301,300 km | | GBT4-J VII - Moon 17 | 230 km | -195°C | 0g | 3.3 × 10¹⁹ kg | 13,511,200 km | | GBT4-J VII - Moon 18 | 480 km | -195°C | 0.01g | 4.3 × 10²⁰ kg | 15,059,200 km | | GBT4-J VII - Moon 19 | 210 km | -195°C | 0g | 2.7 × 10¹⁹ kg | 17,545,099 km |
|
| GBT4-J VIII | Barren | 3 | 10,120 km | 27°C | 0.52g | 27.489 AU |
| Moon | Radius | Temp | Gravity | Mass | Distance |
|---|
| GBT4-J VIII - Moon 1 | 150 km | -220°C | 0g | 6.5 × 10¹⁸ kg | 91,449 km | | GBT4-J VIII - Moon 2 | 490 km | -220°C | 0.01g | 3.6 × 10²⁰ kg | 778,754 km | | GBT4-J VIII - Moon 3 | 2,040 km | -220°C | 0.08g | 4.7 × 10²² kg | 4,757,350 km |
|
| GBT4-J IX | Barren | 1 | 5,860 km | 31°C | 0.78g | 35.221 AU |
| Moon | Radius | Temp | Gravity | Mass | Distance |
|---|
| GBT4-J IX - Moon 1 | 430 km | -226°C | 0.01g | 2.1 × 10²⁰ kg | 2,900,950 km |
|