🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.3

Radius: 1.11

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.74 AU - 0.76 AU

Year: 232 Days

Day: 46.6 Hours

Environment

Temp: 189 °C

Axial Tilt: 17.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.92 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.34

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 0.86 AU - 0.98 AU

Year: 315 Days

Day: 40.4 Hours

Environment

Temp: 107 °C

Axial Tilt: 39.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 60,022,208 km

• M1: 615,595 km (0.108 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.24 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.14

Radius: 1.58

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 1.07 AU - 1.41 AU

Year: 492 Days

Day: 13.5 Hours

Environment

Temp: 17 °C

Axial Tilt: 80.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.37 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.72

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 1.16 AU - 1.58 AU

Year: 572 Days

Day: 18.1 Hours

Environment

Temp: -7 °C

Axial Tilt: 29.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 60,022,208 km

• M1: 182,061 km (0.042 R)

Planet 5 - Gas Giant

Semi-Major Axis: 12.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 879

Radius: 12

Gravity: 6.1 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 11.58 AU - 13.34 AU

Year: 15677 Days

Day: 12.2 Hours

Environment

Temp: -182 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 60,022,208 km

• M1: 149,897 km (0.117 R)
• M2: 579,093 km (0.117 R)
• M3: 1,155,793 km (0.086 R)
• M4: 1,592,170 km (0.119 R)
• M5: 2,043,058 km (0.115 R)
• M6: 2,557,226 km (0.109 R)
• M7: 3,644,952 km (0.117 R)
• M8: 5,458,228 km (0.093 R)
• M9: 6,456,345 km (0.092 R)
• M10: 6,976,796 km (0.114 R)
• M11: 8,351,152 km (0.083 R)
• M12: 11,255,893 km (0.088 R)
• M13: 13,139,480 km (0.111 R)
• M14: 14,336,712 km (0.071 R)
• M15: 17,439,222 km (0.096 R)
• M16: 19,235,294 km (0.094 R)
• M17: 22,107,723 km (0.051 R)
• M18: 24,415,569 km (0.031 R)
• M19: 29,978,665 km (0.054 R)
• M20: 33,308,415 km (0.057 R)
• M21: 33,951,087 km (0.075 R)
• M22: 34,340,490 km (0.098 R)
• M23: 41,132,832 km (0.095 R)
• M24: 41,724,043 km (0.12 R)
• M25: 43,531,335 km (0.103 R)
• M26: 44,609,337 km (0.069 R)
• M27: 53,883,956 km (0.05 R)
• M28: 56,206,912 km (0.094 R)
• M29: 58,595,990 km (0.038 R)
• M30: 62,014,601 km (0.115 R)
• M31: 65,363,349 km (0.094 R)
• M32: 68,004,050 km (0.087 R)

Planet 6 - Gas Giant

Semi-Major Axis: 12.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 972.3

Radius: 10.7

Gravity: 8.49 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 11.81 AU - 13.39 AU

Year: 15942 Days

Day: 13.2 Hours

Environment

Temp: -190 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 60,022,208 km

• M1: 170,691 km (0.093 R)
• M2: 644,318 km (0.102 R)
• M3: 1,212,192 km (0.077 R)
• M4: 2,582,957 km (0.089 R)
• M5: 3,971,823 km (0.118 R)
• M6: 4,553,310 km (0.116 R)
• M7: 6,999,834 km (0.093 R)
• M8: 8,047,169 km (0.083 R)
• M9: 13,158,479 km (0.112 R)
• M10: 14,824,102 km (0.102 R)
• M11: 15,203,931 km (0.037 R)
• M12: 20,099,970 km (0.106 R)
• M13: 22,501,165 km (0.063 R)
• M14: 23,410,571 km (0.115 R)
• M15: 24,873,788 km (0.068 R)
• M16: 26,286,141 km (0.073 R)
• M17: 27,068,388 km (0.092 R)
• M18: 34,956,235 km (0.045 R)
• M19: 37,143,356 km (0.109 R)
• M20: 41,337,632 km (0.115 R)
• M21: 41,788,819 km (0.039 R)
• M22: 42,854,255 km (0.081 R)
• M23: 60,500,520 km (0.071 R)
• M24: 62,256,799 km (0.101 R)
• M25: 68,356,503 km (0.109 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 409

Radius: 6.9

Gravity: 8.59 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 12.66 AU - 14.8 AU

Year: 18134 Days

Day: 24.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 49.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 60,022,208 km

• M1: 85,869 km (0.107 R)
• M2: 471,532 km (0.077 R)
• M3: 1,473,240 km (0.084 R)
• M4: 3,097,274 km (0.051 R)
• M5: 3,323,018 km (0.111 R)
• M6: 3,586,759 km (0.111 R)
• M7: 4,400,721 km (0.072 R)
• M8: 4,719,364 km (0.085 R)
• M9: 5,019,308 km (0.112 R)
• M10: 10,387,627 km (0.11 R)
• M11: 14,027,493 km (0.037 R)
• M12: 16,928,645 km (0.048 R)
• M13: 29,861,829 km (0.11 R)
• M14: 35,483,568 km (0.062 R)
• M15: 42,339,040 km (0.086 R)
• M16: 45,700,354 km (0.097 R)
• M17: 46,909,853 km (0.095 R)
• M18: 52,782,916 km (0.092 R)
• M19: 57,017,134 km (0.111 R)
• M20: 59,663,371 km (0.094 R)

Kuiper Belt

Range: 30.8 - 46.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 501 - 16,332 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit