🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.48 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.96 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.9

Radius: 1.53

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 0.87 AU - 1.05 AU

Year: 358 Days

Day: 31.4 Hours

Environment

Temp: 4 °C

Axial Tilt: 48.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.11

Radius: 1.04

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 1.08 AU - 1.64 AU

Year: 604 Days

Day: 30.4 Hours

Environment

Temp: -36 °C

Axial Tilt: 12 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.17

Radius: 1.36

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 1.12 AU - 1.64 AU

Year: 617 Days

Day: 12.9 Hours

Environment

Temp: -44 °C

Axial Tilt: 48.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.06

Radius: 1.02

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 1.33 AU - 1.51 AU

Year: 644 Days

Day: 13.5 Hours

Environment

Temp: -43 °C

Axial Tilt: 26.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 60,262,308 km

• M1: 174,431 km (0.089 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.76 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.09

Radius: 1.34

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 2.83 AU - 4.69 AU

Year: 2776 Days

Day: 27.2 Hours

Environment

Temp: -139 °C

Axial Tilt: 9.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 60,262,308 km

• M1: 305,180 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 646.9

Radius: 10.1

Gravity: 6.34 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 4.92 AU - 6.32 AU

Year: 5073 Days

Day: 13.2 Hours

Environment

Temp: -158 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 60,262,308 km

• M1: 125,662 km (0.071 R)
• M2: 591,061 km (0.107 R)
• M3: 954,285 km (0.025 R)
• M4: 1,327,681 km (0.083 R)
• M5: 1,684,023 km (0.074 R)
• M6: 2,733,003 km (0.118 R)
• M7: 3,159,507 km (0.098 R)
• M8: 3,738,600 km (0.049 R)
• M9: 4,218,211 km (0.067 R)
• M10: 7,934,671 km (0.053 R)
• M11: 9,287,036 km (0.109 R)
• M12: 10,787,353 km (0.089 R)
• M13: 15,898,065 km (0.116 R)
• M14: 16,430,334 km (0.105 R)
• M15: 16,913,535 km (0.098 R)
• M16: 17,655,840 km (0.048 R)
• M17: 19,606,746 km (0.046 R)
• M18: 20,495,207 km (0.115 R)
• M19: 21,338,939 km (0.042 R)
• M20: 23,549,547 km (0.106 R)
• M21: 24,631,738 km (0.111 R)
• M22: 26,480,917 km (0.109 R)
• M23: 27,735,744 km (0.106 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 29.4

Radius: 11.4

Gravity: 0.23 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 7.12 AU - 11.8 AU

Year: 11080 Days

Day: 8.3 Hours

Environment

Temp: -179 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 60,262,308 km

• M1: 149,299 km (0.093 R)
• M2: 537,356 km (0.064 R)
• M3: 1,599,201 km (0.092 R)
• M4: 3,674,423 km (0.113 R)
• M5: 5,527,791 km (0.048 R)
• M6: 8,092,048 km (0.077 R)
• M7: 9,546,289 km (0.085 R)
• M8: 11,051,692 km (0.034 R)
• M9: 14,761,121 km (0.051 R)
• M10: 17,127,610 km (0.115 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 336.3

Radius: 3.1

Gravity: 34.99 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 13.07 AU - 15.09 AU

Year: 20119 Days

Day: 16.8 Hours

Environment

Temp: -191 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 60,262,308 km

• M1: 38,596 km (0.054 R)
• M2: 183,407 km (0.114 R)
• M3: 299,345 km (0.062 R)
• M4: 478,264 km (0.077 R)
• M5: 580,440 km (0.044 R)
• M6: 1,109,268 km (0.077 R)
• M7: 1,553,424 km (0.119 R)
• M8: 1,697,337 km (0.115 R)
• M9: 1,798,166 km (0.097 R)
• M10: 2,163,634 km (0.106 R)
• M11: 3,892,836 km (0.088 R)
• M12: 6,331,131 km (0.084 R)
• M13: 6,698,843 km (0.031 R)
• M14: 7,521,482 km (0.1 R)
• M15: 8,753,121 km (0.109 R)
• M16: 9,055,309 km (0.07 R)
• M17: 9,260,707 km (0.081 R)
• M18: 10,445,671 km (0.034 R)
• M19: 12,219,603 km (0.057 R)
• M20: 12,724,346 km (0.065 R)
• M21: 13,441,069 km (0.1 R)
• M22: 14,530,890 km (0.076 R)
• M23: 16,807,620 km (0.073 R)
• M24: 18,478,030 km (0.06 R)
• M25: 19,908,784 km (0.083 R)
• M26: 21,502,300 km (0.076 R)
• M27: 22,610,671 km (0.077 R)
• M28: 26,371,113 km (0.067 R)
• M29: 27,532,740 km (0.041 R)
• M30: 27,963,432 km (0.032 R)
• M31: 28,838,281 km (0.112 R)
• M32: 29,957,273 km (0.088 R)
• M33: 30,873,111 km (0.089 R)
• M34: 34,101,732 km (0.109 R)
• M35: 35,099,849 km (0.058 R)
• M36: 38,746,447 km (0.052 R)
• M37: 43,214,038 km (0.045 R)
• M38: 47,394,401 km (0.11 R)
• M39: 48,950,218 km (0.081 R)
• M40: 54,663,810 km (0.082 R)
• M41: 58,473,619 km (0.107 R)
• M42: 60,262,361 km (0.106 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 326 - 13,835 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit