🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.73

Radius: 1.69

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.47 AU - 0.71 AU

Year: 166 Days

Day: 17 Hours

Environment

Temp: 147 °C

Axial Tilt: 34.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.55

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.53 AU - 0.73 AU

Year: 183 Days

Day: 19.3 Hours

Environment

Temp: 200 °C

Axial Tilt: 23.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.83 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.44

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 0.81 AU - 0.85 AU

Year: 276 Days

Day: 40.6 Hours

Environment

Temp: 111 °C

Axial Tilt: 7.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 63,192,216 km

• M1: 356,941 km (0.057 R)

Planet 4 - Terrestrial

Semi-Major Axis: 0.96 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.7

Radius: 1.49

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 0.93 AU - 0.99 AU

Year: 344 Days

Day: 24.2 Hours

Environment

Temp: 30 °C

Axial Tilt: 21.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 63,192,216 km

• M1: 90,656 km (0.055 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.14 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.68

Radius: 0.86

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.92 AU - 1.36 AU

Year: 445 Days

Day: 35.1 Hours

Environment

Temp: 18 °C

Axial Tilt: 32.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 63,192,216 km

• M1: 21,991 km (0.112 R)
• M2: 46,076 km (0.051 R)

Planet 6 - Terrestrial

Semi-Major Axis: 1.19 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.76

Radius: 1.87

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 1.06 AU - 1.32 AU

Year: 474 Days

Day: 47.9 Hours

Environment

Temp: 21 °C

Axial Tilt: 13.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 7 - Terrestrial

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.72

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 2.19 AU - 2.85 AU

Year: 1461 Days

Day: 32.2 Hours

Environment

Temp: -98 °C

Axial Tilt: 2.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.96 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 9.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 314.9

Radius: 11.5

Gravity: 2.38 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 8.98 AU - 9.8 AU

Year: 10510 Days

Day: 13.3 Hours

Environment

Temp: -179 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 63,192,216 km

• M1: 143,016 km (0.05 R)
• M2: 1,151,156 km (0.067 R)
• M3: 1,790,537 km (0.101 R)
• M4: 2,636,513 km (0.111 R)
• M5: 3,322,419 km (0.063 R)
• M6: 3,708,082 km (0.078 R)
• M7: 7,576,235 km (0.106 R)
• M8: 8,621,325 km (0.063 R)
• M9: 10,413,508 km (0.026 R)
• M10: 11,859,670 km (0.117 R)
• M11: 14,541,212 km (0.064 R)
• M12: 16,538,793 km (0.114 R)
• M13: 19,357,665 km (0.091 R)
• M14: 19,721,936 km (0.109 R)
• M15: 20,842,723 km (0.103 R)
• M16: 21,225,544 km (0.108 R)
• M17: 23,456,946 km (0.108 R)
• M18: 26,460,871 km (0.096 R)
• M19: 27,181,784 km (0.097 R)
• M20: 30,589,473 km (0.08 R)
• M21: 36,219,739 km (0.115 R)

Planet 9 - Gas Giant

Semi-Major Axis: 11.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 723.4

Radius: 10.2

Gravity: 6.95 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 9.71 AU - 13.81 AU

Year: 14730 Days

Day: 5.5 Hours

Environment

Temp: -183 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 63,192,216 km

• M1: 126,859 km (0.116 R)
• M2: 894,146 km (0.105 R)
• M3: 1,248,095 km (0.115 R)
• M4: 1,617,751 km (0.12 R)
• M5: 2,900,852 km (0.069 R)
• M6: 3,347,252 km (0.031 R)
• M7: 3,753,859 km (0.109 R)
• M8: 4,163,010 km (0.064 R)
• M9: 5,071,368 km (0.085 R)
• M10: 5,535,720 km (0.114 R)
• M11: 6,265,308 km (0.107 R)
• M12: 7,546,465 km (0.071 R)
• M13: 8,394,535 km (0.059 R)
• M14: 9,148,658 km (0.098 R)
• M15: 10,057,315 km (0.045 R)
• M16: 10,908,078 km (0.11 R)
• M17: 11,744,779 km (0.093 R)
• M18: 12,817,546 km (0.104 R)
• M19: 14,441,430 km (0.066 R)
• M20: 15,672,023 km (0.068 R)
• M21: 19,094,523 km (0.111 R)
• M22: 20,132,133 km (0.076 R)
• M23: 20,934,576 km (0.075 R)
• M24: 23,961,390 km (0.106 R)
• M25: 29,825,028 km (0.113 R)
• M26: 32,295,338 km (0.114 R)
• M27: 33,271,314 km (0.065 R)
• M28: 44,436,252 km (0.025 R)
• M29: 45,339,524 km (0.07 R)
• M30: 48,122,643 km (0.101 R)
• M31: 49,717,057 km (0.068 R)
• M32: 52,341,004 km (0.078 R)
• M33: 54,711,382 km (0.104 R)
• M34: 55,401,627 km (0.101 R)
• M35: 56,799,469 km (0.084 R)
• M36: 61,504,771 km (0.069 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: 190 - 10,545 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit