| J120621 I |  Gas | 5 | 25,060 km | -149°C | 0.81g | 0.73 AU |
| Moon | Radius | Temp | Gravity | Mass | Distance |
|---|
| J120621 I - Moon 1 | 290 km | -149°C | 0.01g | 9.6 × 10¹⁹ kg | 109,182,779 km | | J120621 I - Moon 2 | 120 km | -149°C | 0g | 5.6 × 10¹⁸ kg | 109,182,779 km | | J120621 I - Moon 3 | 600 km | -149°C | 0.02g | 1.2 × 10²¹ kg | 109,182,779 km | | J120621 I - Moon 4 | 1,000 km | -149°C | 0.04g | 6.6 × 10²¹ kg | 109,182,779 km | | J120621 I - Moon 5 | 1,050 km | -149°C | 0.05g | 8.0 × 10²¹ kg | 109,182,779 km |
|
| J120621 II |  Barren | 1 | 4,160 km | -170°C | 0.31g | 1.059 AU |
| Moon | Radius | Temp | Gravity | Mass | Distance |
|---|
| J120621 II - Moon 1 | 310 km | -170°C | 0.01g | 1.1 × 10²⁰ kg | 158,477,500 km |
|
| J120621 III | Gas | 16 | 85,840 km | -211°C | 3.89g | 3.012 AU |
| Moon | Radius | Temp | Gravity | Mass | Distance |
|---|
| J120621 III - Moon 1 | 540 km | -211°C | 0.01g | 5.5 × 10²⁰ kg | 450,601,648 km | | J120621 III - Moon 2 | 760 km | -211°C | 0.02g | 1.7 × 10²¹ kg | 450,601,648 km | | J120621 III - Moon 3 | 1,060 km | -211°C | 0.03g | 5.4 × 10²¹ kg | 450,601,648 km | | J120621 III - Moon 4 | 950 km | -211°C | 0.03g | 3.8 × 10²¹ kg | 450,601,648 km | | J120621 III - Moon 5 | 1,270 km | -211°C | 0.04g | 1.0 × 10²² kg | 450,601,648 km | | J120621 III - Moon 6 | 440 km | -211°C | 0.01g | 2.8 × 10²⁰ kg | 450,601,648 km | | J120621 III - Moon 7 | 1,050 km | -211°C | 0.03g | 5.2 × 10²¹ kg | 450,601,648 km | | J120621 III - Moon 8 | 2,070 km | -211°C | 0.08g | 5.4 × 10²² kg | 450,601,648 km | | J120621 III - Moon 9 | 1,690 km | -211°C | 0.06g | 2.7 × 10²² kg | 450,601,648 km | | J120621 III - Moon 10 | 2,510 km | -211°C | 0.11g | 1.0 × 10²³ kg | 450,601,648 km | | J120621 III - Moon 11 | 880 km | -211°C | 0.03g | 2.9 × 10²¹ kg | 450,601,648 km | | J120621 III - Moon 12 | 2,950 km | -211°C | 0.14g | 1.8 × 10²³ kg | 450,601,648 km | | J120621 III - Moon 13 | 1,770 km | -211°C | 0.07g | 3.1 × 10²² kg | 450,601,648 km | | J120621 III - Moon 14 | 2,310 km | -211°C | 0.1g | 7.8 × 10²² kg | 450,601,648 km | | J120621 III - Moon 15 | 950 km | -211°C | 0.03g | 3.8 × 10²¹ kg | 450,601,648 km | | J120621 III - Moon 16 | 1,920 km | -211°C | 0.08g | 4.1 × 10²² kg | 450,601,648 km |
|
| J120621 IV | Gas | 15 | 119,220 km | -144°C | 7.29g | 11.728 AU |
| Moon | Radius | Temp | Gravity | Mass | Distance |
|---|
| J120621 IV - Moon 1 | 680 km | -208°C | 0.01g | 8.0 × 10²⁰ kg | 1,754,546,962 km | | J120621 IV - Moon 2 | 690 km | -214°C | 0.01g | 8.6 × 10²⁰ kg | 1,754,546,962 km | | J120621 IV - Moon 3 | 410 km | -223°C | 0.01g | 1.5 × 10²⁰ kg | 1,754,546,962 km | | J120621 IV - Moon 4 | 910 km | -229°C | 0.02g | 2.2 × 10²¹ kg | 1,754,546,962 km | | J120621 IV - Moon 5 | 2,130 km | -234°C | 0.06g | 4.0 × 10²² kg | 1,754,546,962 km | | J120621 IV - Moon 6 | 2,640 km | -239°C | 0.08g | 8.3 × 10²² kg | 1,754,546,962 km | | J120621 IV - Moon 7 | 4,350 km | -241°C | 0.16g | 4.6 × 10²³ kg | 1,754,546,962 km | | J120621 IV - Moon 8 | 5,660 km | -242°C | 0.24g | 1.1 × 10²⁴ kg | 1,754,546,962 km | | J120621 IV - Moon 9 | 5,860 km | -242°C | 0.25g | 1.3 × 10²⁴ kg | 1,754,546,962 km | | J120621 IV - Moon 10 | 9,850 km | -242°C | 0.5g | 7.1 × 10²⁴ kg | 1,754,546,962 km | | J120621 IV - Moon 11 | 8,760 km | -242°C | 0.47g | 5.3 × 10²⁴ kg | 1,754,546,962 km | | J120621 IV - Moon 12 | 9,020 km | -242°C | 0.49g | 5.8 × 10²⁴ kg | 1,754,546,962 km | | J120621 IV - Moon 13 | 4,790 km | -242°C | 0.19g | 6.4 × 10²³ kg | 1,754,546,962 km | | J120621 IV - Moon 14 | 3,610 km | -242°C | 0.13g | 2.4 × 10²³ kg | 1,754,546,962 km | | J120621 IV - Moon 15 | 2,130 km | -242°C | 0.06g | 4.0 × 10²² kg | 1,754,546,962 km |
|
| J120621 V | Barren | 0 | 2,770 km | -27°C | 0.3g | 58.171 AU |