| J-GAMP I |  Barren | 0 | 1,890 km | -74°C | 0.13g | 0.327 AU |
| J-GAMP II | Barren | 0 | 3,860 km | 36°C | 0.71g | 0.567 AU |
| J-GAMP III |  Lava | 0 | 3,490 km | 1356°C | 0.37g | 0.879 AU |
| J-GAMP IV |  Temperate | 1 | 6,600 km | 25°C | 0.75g | 1.376 AU |
| Moon | Radius | Temp | Gravity | Mass | Distance |
|---|
| J-GAMP IV - Moon 1 | 880 km | -176°C | 0.03g | 3.7 × 10²¹ kg | 340,024 km |
|
| J-GAMP V | Temperate | 1 | 5,840 km | 7°C | 0.61g | 2.082 AU |
| Moon | Radius | Temp | Gravity | Mass | Distance |
|---|
| J-GAMP V - Moon 1 | 860 km | -194°C | 0.03g | 3.1 × 10²¹ kg | 445,115 km |
|
| J-GAMP VI |  Gas | 3 | 13,630 km | -205°C | 0.54g | 2.823 AU |
| Moon | Radius | Temp | Gravity | Mass | Distance |
|---|
| J-GAMP VI - Moon 1 | 410 km | -205°C | 0.01g | 2.3 × 10²⁰ kg | 167,679 km | | J-GAMP VI - Moon 2 | 1,010 km | -205°C | 0.03g | 4.8 × 10²¹ kg | 579,483 km | | J-GAMP VI - Moon 3 | 1,190 km | -205°C | 0.04g | 8.6 × 10²¹ kg | 1,782,750 km |
|
| J-GAMP VII | Gas | 4 | 15,360 km | -223°C | 0.52g | 5.173 AU |
| Moon | Radius | Temp | Gravity | Mass | Distance |
|---|
| J-GAMP VII - Moon 1 | 220 km | -223°C | 0g | 2.4 × 10¹⁹ kg | 116,150 km | | J-GAMP VII - Moon 2 | 200 km | -223°C | 0g | 1.9 × 10¹⁹ kg | 338,771 km | | J-GAMP VII - Moon 3 | 1,230 km | -223°C | 0.04g | 8.1 × 10²¹ kg | 1,232,330 km | | J-GAMP VII - Moon 4 | 470 km | -223°C | 0.01g | 3.0 × 10²⁰ kg | 4,126,680 km |
|
| J-GAMP VIII | Gas | 4 | 12,260 km | -236°C | 0.83g | 9.458 AU |
| Moon | Radius | Temp | Gravity | Mass | Distance |
|---|
| J-GAMP VIII - Moon 1 | 200 km | -236°C | 0g | 1.4 × 10¹⁹ kg | 165,972 km | | J-GAMP VIII - Moon 2 | 1,280 km | -236°C | 0.03g | 7.9 × 10²¹ kg | 712,528 km | | J-GAMP VIII - Moon 3 | 880 km | -236°C | 0.02g | 2.2 × 10²¹ kg | 1,501,190 km | | J-GAMP VIII - Moon 4 | 2,000 km | -236°C | 0.06g | 3.6 × 10²² kg | 4,141,600 km |
|
| J-GAMP IX | Gas | 4 | 13,940 km | -243°C | 0.8g | 14.575 AU |
| Moon | Radius | Temp | Gravity | Mass | Distance |
|---|
| J-GAMP IX - Moon 1 | 300 km | -243°C | 0g | 5.2 × 10¹⁹ kg | 188,673 km | | J-GAMP IX - Moon 2 | 830 km | -243°C | 0.02g | 1.6 × 10²¹ kg | 740,019 km | | J-GAMP IX - Moon 3 | 2,020 km | -243°C | 0.05g | 3.3 × 10²² kg | 2,656,540 km | | J-GAMP IX - Moon 4 | 530 km | -243°C | 0.01g | 3.5 × 10²⁰ kg | 11,096,700 km |
|