🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 871.7

Radius: 14.3

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.48 AU - 0.68 AU

Year: 295 Days

Day: 9.3 Hours

Environment

Temp: -158 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 46,669,702 km

• M1: 177,872 km (0.108 R)
• M2: 658,081 km (0.079 R)
• M3: 1,209,499 km (0.087 R)
• M4: 1,909,168 km (0.044 R)
• M5: 2,444,429 km (0.029 R)
• M6: 3,290,704 km (0.068 R)
• M7: 3,812,951 km (0.116 R)
• M8: 4,925,659 km (0.084 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 58.1

Radius: 10.2

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.54 AU - 0.76 AU

Year: 349 Days

Day: 8.7 Hours

Environment

Temp: -146 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 46,669,702 km

• M1: 127,308 km (0.098 R)
• M2: 465,100 km (0.118 R)
• M3: 926,310 km (0.108 R)
• M4: 1,255,725 km (0.096 R)
• M5: 1,634,506 km (0.12 R)
• M6: 1,965,417 km (0.069 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 663.1

Radius: 8.6

Gravity: 8.97 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.68 AU - 0.74 AU

Year: 399 Days

Day: 6.4 Hours

Environment

Temp: -156 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 46,669,702 km

• M1: 109,506 km (0.106 R)
• M2: 384,167 km (0.105 R)
• M3: 1,055,263 km (0.104 R)
• M4: 1,357,601 km (0.113 R)
• M5: 1,761,814 km (0.093 R)
• M6: 2,324,901 km (0.059 R)
• M7: 3,359,519 km (0.094 R)
• M8: 3,934,424 km (0.119 R)
• M9: 5,077,352 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 77.2

Radius: 8.5

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.82 AU - 1.18 AU

Year: 667 Days

Day: 8.9 Hours

Environment

Temp: -178 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 46,669,702 km

• M1: 106,962 km (0.111 R)
• M2: 387,907 km (0.107 R)
• M3: 769,831 km (0.035 R)
• M4: 1,053,468 km (0.063 R)
• M5: 1,557,613 km (0.114 R)
• M6: 1,916,947 km (0.11 R)
• M7: 2,222,276 km (0.038 R)
• M8: 2,594,027 km (0.077 R)
• M9: 2,922,843 km (0.11 R)
• M10: 3,632,535 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 353.7

Radius: 14.4

Gravity: 1.71 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 1.01 AU - 1.68 AU

Year: 1034 Days

Day: 13.6 Hours

Environment

Temp: -186 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 46,669,702 km

• M1: 180,116 km (0.109 R)
• M2: 641,476 km (0.085 R)
• M3: 1,421,030 km (0.105 R)
• M4: 2,061,758 km (0.116 R)
• M5: 2,718,792 km (0.098 R)
• M6: 4,055,000 km (0.1 R)
• M7: 4,719,065 km (0.086 R)
• M8: 5,345,282 km (0.104 R)
• M9: 6,450,361 km (0.049 R)
• M10: 7,068,499 km (0.118 R)
• M11: 8,374,489 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 235.1

Radius: 11.9

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 1.2 AU - 1.9 AU

Year: 1287 Days

Day: 12.2 Hours

Environment

Temp: -194 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 46,669,702 km

• M1: 156,629 km (0.078 R)
• M2: 550,071 km (0.049 R)
• M3: 1,149,061 km (0.095 R)
• M4: 1,600,697 km (0.087 R)
• M5: 2,027,949 km (0.087 R)
• M6: 2,631,277 km (0.081 R)
• M7: 3,499,393 km (0.054 R)
• M8: 3,985,586 km (0.116 R)
• M9: 4,954,532 km (0.083 R)
• M10: 6,587,542 km (0.053 R)
• M11: 7,041,123 km (0.09 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 247.4

Radius: 6.6

Gravity: 5.68 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 6.65 AU - 10.79 AU

Year: 17171 Days

Day: 20 Hours

Environment

Temp: -241 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 46,669,702 km

• M1: 92,601 km (0.109 R)
• M2: 541,095 km (0.096 R)
• M3: 1,012,179 km (0.101 R)
• M4: 2,177,247 km (0.074 R)
• M5: 3,186,135 km (0.11 R)
• M6: 6,263,962 km (0.104 R)
• M7: 6,795,782 km (0.116 R)
• M8: 13,440,172 km (0.079 R)
• M9: 20,206,783 km (0.112 R)
• M10: 21,196,373 km (0.101 R)
• M11: 21,788,331 km (0.084 R)
• M12: 22,217,827 km (0.092 R)
• M13: 24,358,572 km (0.109 R)
• M14: 27,421,738 km (0.101 R)
• M15: 31,163,929 km (0.096 R)
• M16: 41,190,128 km (0.087 R)
• M17: 43,722,521 km (0.112 R)
• M18: 44,268,553 km (0.057 R)
• M19: 47,353,560 km (0.05 R)
• M20: 48,364,393 km (0.08 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 422.2

Radius: 5.9

Gravity: 12.13 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 7.62 AU - 10.72 AU

Year: 18518 Days

Day: 23.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 46,669,702 km

• M1: 73,453 km (0.103 R)
• M2: 587,321 km (0.1 R)
• M3: 901,626 km (0.106 R)
• M4: 1,282,652 km (0.08 R)
• M5: 1,603,091 km (0.1 R)
• M6: 2,822,164 km (0.075 R)
• M7: 5,306,984 km (0.08 R)
• M8: 5,634,753 km (0.078 R)
• M9: 6,171,361 km (0.108 R)
• M10: 6,699,591 km (0.062 R)
• M11: 6,996,244 km (0.116 R)
• M12: 7,301,722 km (0.109 R)
• M13: 7,570,400 km (0.118 R)
• M14: 8,465,444 km (0.096 R)
• M15: 9,065,781 km (0.089 R)
• M16: 10,073,921 km (0.047 R)
• M17: 10,633,566 km (0.112 R)
• M18: 12,123,112 km (0.1 R)
• M19: 12,436,819 km (0.07 R)
• M20: 15,290,249 km (0.098 R)
• M21: 16,946,148 km (0.1 R)
• M22: 17,656,737 km (0.115 R)
• M23: 23,101,202 km (0.059 R)
• M24: 28,672,377 km (0.084 R)
• M25: 34,698,179 km (0.102 R)
• M26: 34,950,251 km (0.055 R)
• M27: 36,619,016 km (0.082 R)
• M28: 37,938,170 km (0.066 R)
• M29: 43,678,838 km (0.078 R)
• M30: 48,385,038 km (0.106 R)
• M31: 49,015,892 km (0.099 R)
• M32: 49,972,421 km (0.099 R)
• M33: 53,418,108 km (0.104 R)
• M34: 56,669,319 km (0.076 R)
• M35: 61,512,700 km (0.037 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 174.5

Radius: 7.7

Gravity: 2.94 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 7.2 AU - 11.48 AU

Year: 19035 Days

Day: 15.5 Hours

Environment

Temp: -231 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 46,669,702 km

• M1: 95,743 km (0.114 R)
• M2: 552,166 km (0.11 R)
• M3: 823,536 km (0.033 R)
• M4: 1,129,165 km (0.088 R)
• M5: 1,417,141 km (0.118 R)
• M6: 2,024,957 km (0.074 R)
• M7: 2,305,154 km (0.103 R)
• M8: 2,966,077 km (0.103 R)
• M9: 3,282,177 km (0.081 R)
• M10: 4,199,960 km (0.068 R)
• M11: 7,552,449 km (0.113 R)
• M12: 11,741,488 km (0.107 R)
• M13: 14,483,168 km (0.113 R)
• M14: 16,835,595 km (0.101 R)
• M15: 18,065,289 km (0.043 R)
• M16: 24,573,096 km (0.083 R)
• M17: 24,847,010 km (0.073 R)
• M18: 26,247,694 km (0.086 R)
• M19: 45,836,339 km (0.048 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 382 - 12,705 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit