🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 670

Radius: 13.1

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.53 AU - 0.87 AU

Year: 378 Days

Day: 14.1 Hours

Environment

Temp: -140 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 74,302,125 km

• M1: 162,912 km (0.08 R)
• M2: 599,588 km (0.091 R)
• M3: 1,046,736 km (0.055 R)
• M4: 1,610,122 km (0.093 R)
• M5: 2,135,360 km (0.102 R)
• M6: 2,582,358 km (0.087 R)
• M7: 3,692,823 km (0.108 R)
• M8: 4,479,858 km (0.094 R)
• M9: 5,114,901 km (0.09 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 561.7

Radius: 10.9

Gravity: 4.73 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.74 AU - 0.96 AU

Year: 506 Days

Day: 9.2 Hours

Environment

Temp: -144 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 74,302,125 km

• M1: 135,835 km (0.106 R)
• M2: 629,657 km (0.113 R)
• M3: 1,123,330 km (0.103 R)
• M4: 1,783,805 km (0.099 R)
• M5: 2,329,538 km (0.087 R)
• M6: 2,886,341 km (0.078 R)
• M7: 3,834,642 km (0.107 R)
• M8: 4,281,790 km (0.111 R)
• M9: 4,763,795 km (0.094 R)
• M10: 6,119,600 km (0.094 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 528

Radius: 9.9

Gravity: 5.39 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 0.83 AU - 1.05 AU

Year: 588 Days

Day: 13.5 Hours

Environment

Temp: -145 °C

Axial Tilt: 110.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 74,302,125 km

• M1: 123,119 km (0.106 R)
• M2: 451,038 km (0.078 R)
• M3: 775,067 km (0.101 R)
• M4: 1,350,869 km (0.042 R)
• M5: 1,754,933 km (0.095 R)
• M6: 2,103,496 km (0.114 R)
• M7: 2,439,044 km (0.051 R)
• M8: 3,102,361 km (0.085 R)
• M9: 3,414,422 km (0.112 R)
• M10: 3,990,972 km (0.076 R)
• M11: 4,494,967 km (0.111 R)
• M12: 5,040,850 km (0.029 R)
• M13: 5,630,265 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 40.9

Radius: 13.5

Gravity: 0.22 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1.13 AU - 1.13 AU

Year: 776 Days

Day: 10.7 Hours

Environment

Temp: -167 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 74,302,125 km

• M1: 167,849 km (0.114 R)
• M2: 590,014 km (0.067 R)
• M3: 1,422,825 km (0.116 R)
• M4: 2,094,669 km (0.104 R)
• M5: 2,841,312 km (0.098 R)
• M6: 3,263,627 km (0.075 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 561

Radius: 8.9

Gravity: 7.08 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 1.02 AU - 1.44 AU

Year: 881 Days

Day: 13.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 74,302,125 km

• M1: 111,002 km (0.114 R)
• M2: 400,623 km (0.093 R)
• M3: 714,928 km (0.087 R)
• M4: 1,142,180 km (0.114 R)
• M5: 2,251,149 km (0.101 R)
• M6: 3,451,672 km (0.104 R)
• M7: 3,943,998 km (0.105 R)
• M8: 4,667,154 km (0.058 R)
• M9: 5,051,471 km (0.105 R)
• M10: 6,501,972 km (0.11 R)
• M11: 6,959,891 km (0.09 R)
• M12: 8,286,675 km (0.032 R)
• M13: 8,877,886 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 64.7

Radius: 8

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 1.21 AU - 1.97 AU

Year: 1295 Days

Day: 14.4 Hours

Environment

Temp: -185 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 74,302,125 km

• M1: 212,429 km (0.088 R)
• M2: 733,179 km (0.059 R)
• M3: 1,148,014 km (0.088 R)
• M4: 1,413,401 km (0.102 R)
• M5: 2,096,614 km (0.119 R)
• M6: 2,673,314 km (0.102 R)
• M7: 4,085,967 km (0.064 R)
• M8: 4,569,916 km (0.049 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 470.8

Radius: 8.7

Gravity: 6.22 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 1.97 AU - 2.77 AU

Year: 2356 Days

Day: 12 Hours

Environment

Temp: -202 °C

Axial Tilt: 172.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 74,302,125 km

• M1: 108,159 km (0.114 R)
• M2: 553,961 km (0.089 R)
• M3: 893,997 km (0.11 R)
• M4: 1,473,389 km (0.065 R)
• M5: 2,184,578 km (0.095 R)
• M6: 2,833,234 km (0.035 R)
• M7: 3,235,204 km (0.081 R)
• M8: 3,836,138 km (0.064 R)
• M9: 4,211,928 km (0.11 R)
• M10: 4,885,418 km (0.063 R)
• M11: 5,282,151 km (0.073 R)
• M12: 6,735,195 km (0.108 R)
• M13: 8,468,885 km (0.117 R)
• M14: 9,743,758 km (0.077 R)
• M15: 10,553,232 km (0.111 R)
• M16: 11,368,690 km (0.111 R)
• M17: 11,948,382 km (0.086 R)
• M18: 13,124,820 km (0.097 R)
• M19: 14,962,929 km (0.1 R)
• M20: 15,612,034 km (0.075 R)
• M21: 16,135,178 km (0.032 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 85.5

Radius: 13.9

Gravity: 0.44 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 2.64 AU - 2.84 AU

Year: 2928 Days

Day: 15 Hours

Environment

Temp: -199 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 74,302,125 km

• M1: 172,935 km (0.031 R)
• M2: 678,127 km (0.033 R)
• M3: 1,197,531 km (0.103 R)
• M4: 2,037,074 km (0.044 R)
• M5: 2,601,657 km (0.086 R)
• M6: 3,066,158 km (0.061 R)
• M7: 4,298,695 km (0.066 R)
• M8: 4,935,234 km (0.075 R)
• M9: 5,453,142 km (0.069 R)
• M10: 6,200,533 km (0.1 R)
• M11: 7,015,243 km (0.104 R)
• M12: 8,941,914 km (0.116 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 502.4

Radius: 6.8

Gravity: 10.87 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 8.97 AU - 12.39 AU

Year: 22536 Days

Day: 15.5 Hours

Environment

Temp: -241 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 74,302,125 km

• M1: 84,672 km (0.03 R)
• M2: 411,993 km (0.086 R)
• M3: 626,516 km (0.099 R)
• M4: 907,610 km (0.056 R)
• M5: 1,258,118 km (0.117 R)
• M6: 2,426,477 km (0.11 R)
• M7: 3,547,265 km (0.073 R)
• M8: 4,254,264 km (0.105 R)
• M9: 4,906,062 km (0.049 R)
• M10: 5,944,271 km (0.109 R)
• M11: 7,075,530 km (0.12 R)
• M12: 7,643,404 km (0.072 R)
• M13: 8,604,122 km (0.052 R)
• M14: 9,473,584 km (0.085 R)
• M15: 12,298,291 km (0.063 R)
• M16: 12,635,635 km (0.114 R)
• M17: 13,829,126 km (0.076 R)
• M18: 14,047,240 km (0.111 R)
• M19: 15,482,781 km (0.11 R)
• M20: 15,718,099 km (0.119 R)
• M21: 18,291,182 km (0.117 R)
• M22: 19,087,791 km (0.045 R)
• M23: 21,616,444 km (0.105 R)
• M24: 24,465,685 km (0.097 R)
• M25: 24,999,599 km (0.11 R)
• M26: 32,922,153 km (0.103 R)
• M27: 33,311,556 km (0.11 R)
• M28: 34,765,648 km (0.081 R)
• M29: 37,095,186 km (0.115 R)
• M30: 39,235,333 km (0.075 R)
• M31: 49,464,386 km (0.093 R)
• M32: 49,975,263 km (0.086 R)
• M33: 54,369,701 km (0.091 R)
• M34: 57,313,338 km (0.068 R)
• M35: 65,747,516 km (0.106 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 461 - 14,977 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit