🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.69

Radius: 1.23

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.44 AU - 0.6 AU

Year: 136 Days

Day: 15.7 Hours

Environment

Temp: 264 °C

Axial Tilt: 48.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 76,965,110 km

• M1: 259,403 km (0.118 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.53

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.69 AU - 0.91 AU

Year: 259 Days

Day: 24 Hours

Environment

Temp: 113 °C

Axial Tilt: 25.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.12 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.2

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 1.04 AU - 1.2 AU

Year: 429 Days

Day: 33.2 Hours

Environment

Temp: 5 °C

Axial Tilt: 14.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.13 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.73

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.95 AU - 1.31 AU

Year: 434 Days

Day: 39.9 Hours

Environment

Temp: 5 °C

Axial Tilt: 14.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 76,965,110 km

• M1: 145,559 km (0.119 R)
• M2: 369,058 km (0.104 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.94 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.9

Radius: 1.72

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 1.58 AU - 2.3 AU

Year: 977 Days

Day: 16.2 Hours

Environment

Temp: -57 °C

Axial Tilt: 7.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 76,965,110 km

• M1: 200,910 km (0.072 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.74

Radius: 1.69

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 2.41 AU - 3.17 AU

Year: 1685 Days

Day: 32.2 Hours

Environment

Temp: -91 °C

Axial Tilt: 49.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 76,965,110 km

• M1: 1,323,193 km (0.088 R)

Planet 7 - Terrestrial

Semi-Major Axis: 3.49 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.62

Radius: 1.67

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 3.14 AU - 3.84 AU

Year: 2358 Days

Day: 38 Hours

Environment

Temp: -110 °C

Axial Tilt: 30 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Gas Giant

Semi-Major Axis: 5.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 787.7

Radius: 14.4

Gravity: 3.8 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 4.2 AU - 6.16 AU

Year: 4264 Days

Day: 10.2 Hours

Environment

Temp: -135 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 76,965,110 km

• M1: 179,218 km (0.112 R)
• M2: 786,436 km (0.111 R)
• M3: 2,199,537 km (0.11 R)
• M4: 2,653,417 km (0.11 R)
• M5: 3,649,440 km (0.067 R)
• M6: 4,108,257 km (0.112 R)
• M7: 4,856,695 km (0.073 R)
• M8: 6,073,823 km (0.057 R)
• M9: 7,113,828 km (0.059 R)
• M10: 7,624,255 km (0.078 R)
• M11: 10,425,476 km (0.078 R)
• M12: 10,907,181 km (0.115 R)
• M13: 11,820,925 km (0.037 R)
• M14: 13,697,480 km (0.099 R)
• M15: 14,598,359 km (0.12 R)
• M16: 15,146,635 km (0.056 R)
• M17: 18,729,953 km (0.117 R)
• M18: 20,855,589 km (0.099 R)
• M19: 21,551,817 km (0.099 R)
• M20: 25,740,408 km (0.114 R)
• M21: 26,299,605 km (0.114 R)
• M22: 27,194,499 km (0.081 R)

Planet 9 - Gas Giant

Semi-Major Axis: 9.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 445.4

Radius: 14.3

Gravity: 2.18 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 7.49 AU - 11.87 AU

Year: 10892 Days

Day: 13.8 Hours

Environment

Temp: -167 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 76,965,110 km

• M1: 177,872 km (0.094 R)
• M2: 753,375 km (0.107 R)
• M3: 1,256,772 km (0.029 R)
• M4: 1,809,087 km (0.101 R)
• M5: 2,359,757 km (0.107 R)
• M6: 2,917,308 km (0.073 R)
• M7: 3,444,790 km (0.102 R)
• M8: 4,665,658 km (0.089 R)
• M9: 6,054,076 km (0.069 R)
• M10: 8,414,581 km (0.09 R)
• M11: 9,682,124 km (0.07 R)
• M12: 10,969,713 km (0.119 R)
• M13: 12,201,502 km (0.107 R)
• M14: 13,464,108 km (0.073 R)
• M15: 14,686,023 km (0.06 R)
• M16: 16,114,234 km (0.109 R)
• M17: 17,209,739 km (0.081 R)
• M18: 18,870,874 km (0.082 R)
• M19: 19,549,151 km (0.047 R)
• M20: 23,102,399 km (0.056 R)
• M21: 24,317,732 km (0.103 R)
• M22: 27,831,786 km (0.079 R)
• M23: 28,810,007 km (0.118 R)
• M24: 30,320,197 km (0.076 R)
• M25: 31,988,662 km (0.12 R)
• M26: 33,607,610 km (0.12 R)
• M27: 34,270,329 km (0.049 R)
• M28: 38,431,095 km (0.027 R)

Planet 10 - Ice Giant

Semi-Major Axis: 18.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 350.9

Radius: 6.9

Gravity: 7.37 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 14.57 AU - 22.13 AU

Year: 28428 Days

Day: 22.2 Hours

Environment

Temp: -192 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 76,965,110 km

• M1: 85,869 km (0.117 R)
• M2: 483,800 km (0.116 R)
• M3: 828,772 km (0.069 R)
• M4: 3,215,307 km (0.095 R)
• M5: 3,672,628 km (0.102 R)
• M6: 4,205,196 km (0.109 R)
• M7: 5,345,730 km (0.104 R)
• M8: 6,240,924 km (0.064 R)
• M9: 7,915,822 km (0.083 R)
• M10: 11,402,350 km (0.115 R)
• M11: 14,473,744 km (0.117 R)
• M12: 16,526,226 km (0.111 R)
• M13: 27,024,556 km (0.1 R)
• M14: 27,369,828 km (0.055 R)
• M15: 32,389,734 km (0.114 R)
• M16: 33,435,872 km (0.098 R)
• M17: 34,639,537 km (0.066 R)
• M18: 47,969,006 km (0.104 R)
• M19: 51,236,523 km (0.084 R)
• M20: 66,626,553 km (0.056 R)
• M21: 74,455,907 km (0.089 R)
• M22: 75,589,560 km (0.095 R)

Kuiper Belt

Range: 30.3 - 50.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 276 - 19,379 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit