🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.67 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.33 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.71

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 1.07 AU - 1.59 AU

Year: 465 Days

Day: 20.2 Hours

Environment

Temp: 146 °C

Axial Tilt: 3.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 76,128,000 km

• M1: 39,494 km (0.057 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.37 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.84

Radius: 1.28

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 1.32 AU - 1.42 AU

Year: 486 Days

Day: 28.5 Hours

Environment

Temp: 154 °C

Axial Tilt: 39.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 76,128,000 km

• M1: 37,848 km (0.042 R)
• M2: 423,063 km (0.09 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.68

Radius: 0.86

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 1.16 AU - 1.86 AU

Year: 563 Days

Day: 18.5 Hours

Environment

Temp: 103 °C

Axial Tilt: 27.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.82 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.09

Radius: 1.34

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 1.69 AU - 1.95 AU

Year: 745 Days

Day: 35.7 Hours

Environment

Temp: 116 °C

Axial Tilt: 10.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 76,128,000 km

• M1: 353,051 km (0.111 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.93 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.5

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 1.47 AU - 2.39 AU

Year: 813 Days

Day: 18.4 Hours

Environment

Temp: 22 °C

Axial Tilt: 3.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 76,128,000 km

• M1: 607,218 km (0.111 R)

Planet 6 - Terrestrial

Semi-Major Axis: 7.48 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 5.72 AU - 9.24 AU

Year: 6205 Days

Day: 36.3 Hours

Environment

Temp: -131 °C

Axial Tilt: 38 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 11.02 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 14.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 656.3

Radius: 10.1

Gravity: 6.43 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 12.35 AU - 16.77 AU

Year: 16852 Days

Day: 6.9 Hours

Environment

Temp: -157 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 76,128,000 km

• M1: 125,812 km (0.033 R)
• M2: 798,703 km (0.111 R)
• M3: 1,299,557 km (0.114 R)
• M4: 1,639,443 km (0.109 R)
• M5: 2,213,300 km (0.089 R)
• M6: 3,139,162 km (0.038 R)
• M7: 4,368,258 km (0.106 R)
• M8: 6,252,593 km (0.068 R)
• M9: 7,604,957 km (0.067 R)
• M10: 10,468,560 km (0.102 R)
• M11: 12,044,723 km (0.085 R)
• M12: 12,365,162 km (0.116 R)
• M13: 13,023,093 km (0.072 R)
• M14: 13,704,063 km (0.062 R)
• M15: 16,043,923 km (0.097 R)
• M16: 16,747,182 km (0.084 R)
• M17: 19,590,888 km (0.113 R)
• M18: 22,258,518 km (0.114 R)
• M19: 25,473,226 km (0.102 R)
• M20: 26,108,568 km (0.101 R)
• M21: 26,972,197 km (0.09 R)
• M22: 28,078,324 km (0.087 R)
• M23: 40,138,754 km (0.095 R)
• M24: 40,855,029 km (0.065 R)
• M25: 48,331,182 km (0.077 R)
• M26: 51,628,170 km (0.108 R)
• M27: 55,778,613 km (0.111 R)
• M28: 56,850,033 km (0.09 R)
• M29: 60,146,422 km (0.095 R)
• M30: 61,651,676 km (0.071 R)
• M31: 62,413,578 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 21.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 312.6

Radius: 3.6

Gravity: 24.12 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 17.9 AU - 24.52 AU

Year: 29629 Days

Day: 20.2 Hours

Environment

Temp: -170 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 76,128,000 km

• M1: 45,328 km (0.098 R)
• M2: 172,935 km (0.071 R)
• M3: 438,771 km (0.113 R)
• M4: 877,242 km (0.104 R)
• M5: 1,219,372 km (0.1 R)
• M6: 1,351,318 km (0.112 R)
• M7: 1,644,380 km (0.072 R)
• M8: 2,119,652 km (0.098 R)
• M9: 2,422,887 km (0.066 R)
• M10: 2,829,045 km (0.088 R)
• M11: 3,306,861 km (0.109 R)
• M12: 3,929,936 km (0.111 R)
• M13: 4,219,558 km (0.106 R)
• M14: 4,557,948 km (0.112 R)
• M15: 4,987,443 km (0.029 R)
• M16: 5,327,031 km (0.086 R)
• M17: 5,522,106 km (0.033 R)
• M18: 6,307,345 km (0.085 R)
• M19: 8,564,628 km (0.118 R)
• M20: 9,555,115 km (0.112 R)
• M21: 10,316,419 km (0.066 R)
• M22: 11,307,804 km (0.105 R)
• M23: 12,981,355 km (0.077 R)
• M24: 14,283,754 km (0.046 R)
• M25: 18,002,608 km (0.076 R)
• M26: 19,525,664 km (0.086 R)
• M27: 20,746,831 km (0.026 R)
• M28: 25,696,426 km (0.036 R)
• M29: 26,141,330 km (0.103 R)
• M30: 28,918,615 km (0.11 R)
• M31: 30,875,505 km (0.076 R)
• M32: 35,186,915 km (0.088 R)
• M33: 53,681,102 km (0.074 R)
• M34: 56,438,938 km (0.119 R)
• M35: 57,190,069 km (0.05 R)
• M36: 67,358,386 km (0.11 R)
• M37: 67,779,953 km (0.107 R)
• M38: 69,055,275 km (0.064 R)
• M39: 71,873,100 km (0.09 R)
• M40: 73,868,287 km (0.101 R)

Kuiper Belt

Range: 36.2 - 61.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 515 - 19,595 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit