🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 949.2

Radius: 12.4

Gravity: 6.17 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.65 AU - 0.85 AU

Year: 433 Days

Day: 9 Hours

Environment

Temp: -156 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 44,572,291 km

• M1: 154,535 km (0.105 R)
• M2: 637,885 km (0.031 R)
• M3: 1,069,774 km (0.12 R)
• M4: 2,324,302 km (0.102 R)
• M5: 2,913,269 km (0.074 R)
• M6: 3,821,328 km (0.079 R)
• M7: 4,737,765 km (0.119 R)
• M8: 5,466,306 km (0.099 R)
• M9: 6,010,543 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 734.6

Radius: 13.2

Gravity: 4.22 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 0.78 AU - 0.86 AU

Year: 495 Days

Day: 9.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 44,572,291 km

• M1: 164,707 km (0.045 R)
• M2: 951,442 km (0.026 R)
• M3: 1,422,975 km (0.112 R)
• M4: 2,095,866 km (0.071 R)
• M5: 2,612,577 km (0.115 R)
• M6: 3,418,162 km (0.113 R)
• M7: 5,122,829 km (0.112 R)
• M8: 5,591,520 km (0.097 R)
• M9: 6,016,078 km (0.111 R)
• M10: 6,462,329 km (0.079 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 684.5

Radius: 12.1

Gravity: 4.68 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.99 AU - 1.17 AU

Year: 748 Days

Day: 11.2 Hours

Environment

Temp: -173 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 44,572,291 km

• M1: 150,795 km (0.065 R)
• M2: 953,686 km (0.115 R)
• M3: 1,690,606 km (0.087 R)
• M4: 2,281,068 km (0.077 R)
• M5: 2,721,634 km (0.072 R)
• M6: 3,168,034 km (0.086 R)
• M7: 3,649,290 km (0.118 R)
• M8: 4,087,463 km (0.118 R)
• M9: 4,709,640 km (0.099 R)
• M10: 5,087,973 km (0.047 R)
• M11: 8,188,987 km (0.078 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 563

Radius: 12.3

Gravity: 3.72 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 1.22 AU - 1.54 AU

Year: 1081 Days

Day: 12.7 Hours

Environment

Temp: -186 °C

Axial Tilt: 111.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 44,572,291 km

• M1: 153,039 km (0.071 R)
• M2: 785,688 km (0.075 R)
• M3: 1,256,024 km (0.054 R)
• M4: 1,655,600 km (0.072 R)
• M5: 2,121,298 km (0.075 R)
• M6: 2,521,771 km (0.054 R)
• M7: 3,364,755 km (0.091 R)
• M8: 4,611,055 km (0.095 R)
• M9: 5,007,789 km (0.094 R)
• M10: 5,870,819 km (0.079 R)
• M11: 6,581,259 km (0.066 R)
• M12: 7,015,691 km (0.08 R)
• M13: 7,445,037 km (0.063 R)
• M14: 8,173,728 km (0.1 R)
• M15: 9,032,271 km (0.099 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 825.1

Radius: 11.7

Gravity: 6.03 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 1.06 AU - 1.74 AU

Year: 1105 Days

Day: 8.1 Hours

Environment

Temp: -182 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 44,572,291 km

• M1: 145,559 km (0.114 R)
• M2: 514,916 km (0.105 R)
• M3: 904,469 km (0.08 R)
• M4: 1,468,453 km (0.084 R)
• M5: 2,431,414 km (0.063 R)
• M6: 2,949,472 km (0.116 R)
• M7: 3,434,019 km (0.119 R)
• M8: 4,473,575 km (0.08 R)
• M9: 5,585,087 km (0.063 R)
• M10: 6,060,359 km (0.079 R)
• M11: 7,444,289 km (0.088 R)
• M12: 8,237,906 km (0.096 R)
• M13: 8,655,434 km (0.051 R)
• M14: 9,028,680 km (0.114 R)
• M15: 9,776,819 km (0.11 R)
• M16: 10,501,322 km (0.079 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 496

Radius: 13.9

Gravity: 2.57 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 1.38 AU - 1.84 AU

Year: 1362 Days

Day: 8.8 Hours

Environment

Temp: -197 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 44,572,291 km

• M1: 172,935 km (0.069 R)
• M2: 654,042 km (0.056 R)
• M3: 1,128,866 km (0.107 R)
• M4: 1,696,889 km (0.116 R)
• M5: 2,196,994 km (0.103 R)
• M6: 3,087,401 km (0.042 R)
• M7: 3,686,092 km (0.025 R)
• M8: 4,138,924 km (0.12 R)
• M9: 4,665,509 km (0.1 R)
• M10: 5,643,430 km (0.102 R)
• M11: 6,406,230 km (0.101 R)
• M12: 7,411,378 km (0.077 R)
• M13: 7,899,366 km (0.102 R)
• M14: 8,409,046 km (0.101 R)
• M15: 9,229,291 km (0.113 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 758.3

Radius: 10.9

Gravity: 6.38 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 2.27 AU - 2.95 AU

Year: 2812 Days

Day: 7.3 Hours

Environment

Temp: -200 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 44,572,291 km

• M1: 135,536 km (0.093 R)
• M2: 580,141 km (0.08 R)
• M3: 1,130,362 km (0.042 R)
• M4: 1,509,293 km (0.103 R)
• M5: 2,011,643 km (0.077 R)
• M6: 2,445,028 km (0.117 R)
• M7: 2,810,645 km (0.109 R)
• M8: 3,195,560 km (0.099 R)
• M9: 3,596,482 km (0.042 R)
• M10: 4,369,155 km (0.091 R)
• M11: 4,748,984 km (0.092 R)
• M12: 6,552,686 km (0.097 R)
• M13: 11,540,877 km (0.1 R)
• M14: 11,966,483 km (0.111 R)
• M15: 13,167,904 km (0.094 R)
• M16: 14,793,285 km (0.095 R)
• M17: 19,856,125 km (0.073 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 200.2

Radius: 10.3

Gravity: 1.89 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 3.72 AU - 5.26 AU

Year: 6345 Days

Day: 5.1 Hours

Environment

Temp: -220 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 44,572,291 km

• M1: 148,102 km (0.084 R)
• M2: 629,957 km (0.102 R)
• M3: 1,440,478 km (0.07 R)
• M4: 2,131,470 km (0.09 R)
• M5: 2,631,427 km (0.088 R)
• M6: 4,925,510 km (0.088 R)
• M7: 6,280,119 km (0.11 R)
• M8: 8,347,860 km (0.06 R)
• M9: 10,585,695 km (0.065 R)
• M10: 11,644,848 km (0.091 R)
• M11: 12,866,464 km (0.099 R)
• M12: 13,678,332 km (0.057 R)
• M13: 19,966,080 km (0.1 R)
• M14: 21,119,031 km (0.079 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 665.3

Radius: 10.9

Gravity: 5.6 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 4.82 AU - 6.6 AU

Year: 9099 Days

Day: 8.8 Hours

Environment

Temp: -231 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 44,572,291 km

• M1: 137,630 km (0.116 R)
• M2: 589,565 km (0.09 R)
• M3: 1,090,269 km (0.112 R)
• M4: 1,564,495 km (0.11 R)
• M5: 2,090,181 km (0.091 R)
• M6: 2,832,785 km (0.107 R)
• M7: 3,895,080 km (0.103 R)
• M8: 5,363,532 km (0.102 R)
• M9: 5,723,615 km (0.115 R)
• M10: 6,419,843 km (0.081 R)
• M11: 10,471,851 km (0.105 R)
• M12: 10,984,373 km (0.071 R)
• M13: 13,560,449 km (0.095 R)
• M14: 13,985,007 km (0.12 R)
• M15: 16,652,487 km (0.118 R)
• M16: 19,796,585 km (0.116 R)
• M17: 24,457,756 km (0.061 R)
• M18: 26,098,994 km (0.1 R)
• M19: 26,946,466 km (0.081 R)
• M20: 27,425,329 km (0.096 R)
• M21: 28,203,088 km (0.119 R)
• M22: 29,599,584 km (0.092 R)
• M23: 30,109,264 km (0.073 R)
• M24: 32,746,376 km (0.118 R)
• M25: 34,288,580 km (0.104 R)
• M26: 40,817,330 km (0.085 R)
• M27: 42,991,735 km (0.118 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 278 - 20,137 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit