🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.45

Radius: 0.73

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.47 AU - 0.61 AU

Year: 149 Days

Day: 34.1 Hours

Environment

Temp: 184 °C

Axial Tilt: 57.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.3

Radius: 1.4

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.89 AU - 1.17 AU

Year: 392 Days

Day: 43 Hours

Environment

Temp: 4 °C

Axial Tilt: 42.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 21,646,079 km

• M1: 164,258 km (0.116 R)
• M2: 608,564 km (0.051 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.44

Radius: 1.43

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.96 AU - 1.6 AU

Year: 543 Days

Day: 30.1 Hours

Environment

Temp: -21 °C

Axial Tilt: 18.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 21,646,079 km

• M1: 52,509 km (0.094 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.26

Radius: 0.58

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 1.22 AU - 1.5 AU

Year: 594 Days

Day: 34.3 Hours

Environment

Temp: -41 °C

Axial Tilt: 26.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.32

Radius: 1.8

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 1.4 AU - 1.66 AU

Year: 709 Days

Day: 43.4 Hours

Environment

Temp: -54 °C

Axial Tilt: 4.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 21,646,079 km

• M1: 758,312 km (0.094 R)

Asteroid Belt

Center: 5.87 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 10.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 521.1

Radius: 13.2

Gravity: 2.99 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 8.5 AU - 11.9 AU

Year: 12208 Days

Day: 15 Hours

Environment

Temp: -188 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 21,646,079 km

• M1: 164,109 km (0.095 R)
• M2: 770,279 km (0.087 R)
• M3: 1,619,696 km (0.118 R)
• M4: 2,962,935 km (0.071 R)
• M5: 4,180,363 km (0.089 R)
• M6: 6,928,925 km (0.079 R)
• M7: 8,634,490 km (0.072 R)
• M8: 12,384,759 km (0.041 R)
• M9: 14,035,123 km (0.089 R)
• M10: 15,079,914 km (0.037 R)
• M11: 17,619,787 km (0.06 R)
• M12: 19,703,087 km (0.106 R)
• M13: 21,688,699 km (0.089 R)
• M14: 26,054,414 km (0.054 R)
• M15: 27,933,513 km (0.07 R)
• M16: 29,270,469 km (0.106 R)
• M17: 30,541,901 km (0.115 R)
• M18: 32,293,992 km (0.12 R)
• M19: 37,211,124 km (0.105 R)
• M20: 37,951,933 km (0.119 R)
• M21: 42,204,102 km (0.104 R)
• M22: 43,145,372 km (0.059 R)
• M23: 46,907,011 km (0.104 R)
• M24: 49,681,752 km (0.09 R)

Planet 7 - Gas Giant

Semi-Major Axis: 10.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 574.3

Radius: 10

Gravity: 5.74 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 9.05 AU - 11.35 AU

Year: 12208 Days

Day: 13.7 Hours

Environment

Temp: -183 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 21,646,079 km

• M1: 124,765 km (0.055 R)
• M2: 439,967 km (0.083 R)
• M3: 750,981 km (0.097 R)
• M4: 1,104,631 km (0.094 R)
• M5: 1,643,781 km (0.059 R)
• M6: 2,095,417 km (0.039 R)
• M7: 2,487,364 km (0.114 R)
• M8: 4,724,151 km (0.047 R)
• M9: 5,137,340 km (0.034 R)
• M10: 5,471,393 km (0.11 R)
• M11: 6,295,527 km (0.117 R)
• M12: 6,796,680 km (0.111 R)
• M13: 7,241,285 km (0.056 R)
• M14: 11,360,313 km (0.119 R)
• M15: 11,756,897 km (0.079 R)
• M16: 13,752,233 km (0.062 R)
• M17: 14,398,945 km (0.113 R)
• M18: 19,507,862 km (0.118 R)
• M19: 24,283,624 km (0.119 R)
• M20: 26,001,905 km (0.033 R)
• M21: 26,691,402 km (0.095 R)
• M22: 28,313,491 km (0.11 R)
• M23: 30,540,704 km (0.055 R)
• M24: 43,037,512 km (0.111 R)
• M25: 44,141,245 km (0.043 R)
• M26: 44,981,537 km (0.069 R)
• M27: 50,857,292 km (0.096 R)

Planet 8 - Gas Giant

Semi-Major Axis: 10.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 13.2

Radius: 12

Gravity: 0.09 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 9.86 AU - 10.6 AU

Year: 12261 Days

Day: 11.1 Hours

Environment

Temp: -179 °C

Axial Tilt: 105.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 21,646,079 km

• M1: 175,030 km (0.07 R)
• M2: 1,521,859 km (0.118 R)
• M3: 5,020,205 km (0.104 R)
• M4: 6,495,839 km (0.111 R)
• M5: 11,832,892 km (0.099 R)

Planet 9 - Ice Giant

Semi-Major Axis: 12.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 24.2

Radius: 6.3

Gravity: 0.61 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 11.66 AU - 12.92 AU

Year: 16146 Days

Day: 22.1 Hours

Environment

Temp: -187 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 21,646,079 km

• M1: 78,389 km (0.096 R)
• M2: 727,046 km (0.032 R)
• M3: 1,448,407 km (0.09 R)
• M4: 2,419,147 km (0.105 R)
• M5: 2,646,985 km (0.086 R)
• M6: 2,889,184 km (0.062 R)
• M7: 3,927,243 km (0.087 R)
• M8: 5,626,825 km (0.107 R)
• M9: 6,028,794 km (0.114 R)
• M10: 6,950,018 km (0.08 R)
• M11: 10,313,427 km (0.078 R)
• M12: 10,915,259 km (0.101 R)
• M13: 11,245,721 km (0.09 R)
• M14: 12,770,572 km (0.077 R)
• M15: 14,134,306 km (0.108 R)
• M16: 14,977,440 km (0.103 R)
• M17: 17,092,903 km (0.064 R)
• M18: 18,337,408 km (0.091 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 166 - 11,026 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit