🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 921.1

Radius: 14.6

Gravity: 4.32 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.63 AU - 0.97 AU

Year: 494 Days

Day: 12.8 Hours

Environment

Temp: -169 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 48,844,491 km

• M1: 183,407 km (0.107 R)
• M2: 639,232 km (0.073 R)
• M3: 1,124,078 km (0.112 R)
• M4: 1,614,311 km (0.088 R)
• M5: 2,373,520 km (0.095 R)
• M6: 3,252,407 km (0.049 R)
• M7: 4,642,471 km (0.072 R)
• M8: 5,728,252 km (0.036 R)
• M9: 6,515,885 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 774.9

Radius: 13.3

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 1.08 AU - 1.38 AU

Year: 942 Days

Day: 14.6 Hours

Environment

Temp: -186 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 48,844,491 km

• M1: 165,455 km (0.101 R)
• M2: 620,532 km (0.115 R)
• M3: 1,079,947 km (0.031 R)
• M4: 1,587,383 km (0.107 R)
• M5: 2,307,996 km (0.089 R)
• M6: 3,293,696 km (0.043 R)
• M7: 4,253,815 km (0.052 R)
• M8: 4,863,576 km (0.046 R)
• M9: 5,334,361 km (0.115 R)
• M10: 7,654,923 km (0.096 R)
• M11: 9,249,337 km (0.031 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 935.5

Radius: 14.4

Gravity: 4.51 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 2.83 AU - 3.13 AU

Year: 3551 Days

Day: 10.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 48,844,491 km

• M1: 191,186 km (0.053 R)
• M2: 991,385 km (0.103 R)
• M3: 1,456,485 km (0.104 R)
• M4: 2,513,244 km (0.1 R)
• M5: 3,295,342 km (0.052 R)
• M6: 4,189,937 km (0.114 R)
• M7: 5,033,071 km (0.038 R)
• M8: 5,482,014 km (0.113 R)
• M9: 5,957,885 km (0.071 R)
• M10: 6,583,952 km (0.111 R)
• M11: 7,898,618 km (0.108 R)
• M12: 8,730,233 km (0.082 R)
• M13: 10,696,547 km (0.114 R)
• M14: 11,624,054 km (0.119 R)
• M15: 12,845,969 km (0.092 R)
• M16: 15,324,507 km (0.082 R)
• M17: 15,934,716 km (0.066 R)
• M18: 17,984,806 km (0.096 R)
• M19: 18,915,304 km (0.048 R)
• M20: 19,553,190 km (0.119 R)
• M21: 24,130,286 km (0.115 R)
• M22: 25,109,404 km (0.076 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 79.7

Radius: 10.1

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 3.17 AU - 4.71 AU

Year: 5398 Days

Day: 14.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 48,844,491 km

• M1: 125,662 km (0.087 R)
• M2: 532,868 km (0.097 R)
• M3: 1,225,506 km (0.08 R)
• M4: 1,603,988 km (0.073 R)
• M5: 2,026,154 km (0.11 R)
• M6: 3,097,125 km (0.115 R)
• M7: 4,590,111 km (0.053 R)
• M8: 4,942,863 km (0.09 R)
• M9: 6,186,171 km (0.096 R)
• M10: 7,178,304 km (0.097 R)
• M11: 8,183,153 km (0.099 R)
• M12: 9,116,793 km (0.089 R)
• M13: 9,576,059 km (0.101 R)
• M14: 10,050,733 km (0.085 R)
• M15: 11,194,857 km (0.052 R)
• M16: 12,108,452 km (0.115 R)
• M17: 14,921,640 km (0.11 R)

Planet 5 - Ice Giant

Semi-Major Axis: 5.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 38.5

Radius: 4.8

Gravity: 1.67 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 5.19 AU - 5.91 AU

Year: 9025 Days

Day: 15 Hours

Environment

Temp: -228 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 48,844,491 km

• M1: 60,886 km (0.096 R)
• M2: 870,211 km (0.106 R)
• M3: 1,289,833 km (0.067 R)
• M4: 2,045,452 km (0.11 R)
• M5: 4,839,491 km (0.109 R)
• M6: 5,385,224 km (0.116 R)
• M7: 5,746,653 km (0.109 R)
• M8: 6,227,311 km (0.116 R)
• M9: 9,412,399 km (0.074 R)
• M10: 9,794,771 km (0.111 R)
• M11: 10,664,982 km (0.12 R)
• M12: 10,890,426 km (0.078 R)
• M13: 15,558,627 km (0.076 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 559.1

Radius: 5.3

Gravity: 19.9 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 6.16 AU - 6.8 AU

Year: 11386 Days

Day: 17.7 Hours

Environment

Temp: -235 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 48,844,491 km

• M1: 66,571 km (0.104 R)
• M2: 792,121 km (0.091 R)
• M3: 983,905 km (0.117 R)
• M4: 1,634,506 km (0.074 R)
• M5: 1,818,811 km (0.112 R)
• M6: 2,229,756 km (0.091 R)
• M7: 2,617,664 km (0.091 R)
• M8: 3,330,348 km (0.08 R)
• M9: 4,782,943 km (0.119 R)
• M10: 5,460,472 km (0.099 R)
• M11: 5,769,541 km (0.092 R)
• M12: 7,410,480 km (0.096 R)
• M13: 9,881,687 km (0.08 R)
• M14: 10,237,581 km (0.108 R)
• M15: 11,860,718 km (0.103 R)
• M16: 29,496,511 km (0.106 R)
• M17: 34,802,149 km (0.115 R)
• M18: 39,809,789 km (0.119 R)
• M19: 44,860,811 km (0.115 R)
• M20: 45,276,843 km (0.076 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 478 - 13,313 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit