| SI-I89 I |  Barren | 0 | 2,020 km | 20°C | 0.32g | 0.343 AU |
| SI-I89 II |  Lava | 0 | 2,130 km | 1123°C | 0.2g | 0.445 AU |
| SI-I89 III | Barren | 0 | 2,600 km | -51°C | 0.24g | 0.598 AU |
| SI-I89 IV | Lava | 1 | 4,440 km | 1017°C | 0.46g | 0.967 AU |
| Moon | Radius | Temp | Gravity | Mass | Distance |
|---|
| SI-I89 IV - Moon 1 | 110 km | -99°C | 0g | 5.1 × 10¹⁸ kg | 216,892 km |
|
| SI-I89 V | Barren | 1 | 4,510 km | 41°C | 0.42g | 1.407 AU |
| Moon | Radius | Temp | Gravity | Mass | Distance |
|---|
| SI-I89 V - Moon 1 | 550 km | -128°C | 0.02g | 9.7 × 10²⁰ kg | 376,705 km |
|
| SI-I89 VI |  Gas | 3 | 12,810 km | -173°C | 0.87g | 2.956 AU |
| Moon | Radius | Temp | Gravity | Mass | Distance |
|---|
| SI-I89 VI - Moon 1 | 130 km | -173°C | 0g | 5.9 × 10¹⁸ kg | 58,089 km | | SI-I89 VI - Moon 2 | 780 km | -173°C | 0.03g | 2.5 × 10²¹ kg | 495,465 km | | SI-I89 VI - Moon 3 | 720 km | -173°C | 0.02g | 1.9 × 10²¹ kg | 1,675,090 km |
|
| SI-I89 VII | Barren | 2 | 10,700 km | 32°C | 0.86g | 6.216 AU |
| Moon | Radius | Temp | Gravity | Mass | Distance |
|---|
| SI-I89 VII - Moon 1 | 190 km | -204°C | 0g | 1.7 × 10¹⁹ kg | 317,086 km | | SI-I89 VII - Moon 2 | 1,210 km | -204°C | 0.04g | 9.2 × 10²¹ kg | 1,433,540 km |
|
| SI-I89 VIII | Lava | 3 | 11,240 km | 498°C | 2.04g | 11.761 AU |
| Moon | Radius | Temp | Gravity | Mass | Distance |
|---|
| SI-I89 VIII - Moon 1 | 340 km | -223°C | 0.01g | 1.0 × 10²⁰ kg | 258,167 km | | SI-I89 VIII - Moon 2 | 1,060 km | -223°C | 0.03g | 4.8 × 10²¹ kg | 928,209 km | | SI-I89 VIII - Moon 3 | 1,260 km | -223°C | 0.04g | 8.8 × 10²¹ kg | 5,096,440 km |
|
| SI-I89 IX | Barren | 2 | 8,710 km | 39°C | 1.58g | 18.307 AU |
| Moon | Radius | Temp | Gravity | Mass | Distance |
|---|
| SI-I89 IX - Moon 1 | 270 km | -233°C | 0g | 4.4 × 10¹⁹ kg | 294,372 km | | SI-I89 IX - Moon 2 | 1,480 km | -233°C | 0.04g | 1.3 × 10²² kg | 3,435,230 km |
|