🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.71 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.91

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 0.71 AU - 0.71 AU

Year: 214 Days

Day: 19.7 Hours

Environment

Temp: 119 °C

Axial Tilt: 26.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.45 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.87

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 1.13 AU - 1.77 AU

Year: 625 Days

Day: 22.3 Hours

Environment

Temp: -13 °C

Axial Tilt: 5.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.99

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 2.62 AU - 2.82 AU

Year: 1607 Days

Day: 37 Hours

Environment

Temp: -97 °C

Axial Tilt: 1.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.8 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.44

Radius: 0.72

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 2.35 AU - 3.25 AU

Year: 1678 Days

Day: 24 Hours

Environment

Temp: -93 °C

Axial Tilt: 10.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 50,956,067 km

• M1: 1,025,045 km (0.104 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.69 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.88

Radius: 0.95

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 2.99 AU - 4.39 AU

Year: 2539 Days

Day: 19.2 Hours

Environment

Temp: -104 °C

Axial Tilt: 35.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 50,956,067 km

• M1: 1,092,364 km (0.104 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.13

Radius: 1.35

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 3.66 AU - 3.8 AU

Year: 2580 Days

Day: 24.1 Hours

Environment

Temp: -114 °C

Axial Tilt: 13.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 4.25 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.95

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 4.22 AU - 4.28 AU

Year: 3138 Days

Day: 42.1 Hours

Environment

Temp: -122 °C

Axial Tilt: 35.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 7.85 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 11.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 929.1

Radius: 13.7

Gravity: 4.95 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 8.95 AU - 13.93 AU

Year: 13858 Days

Day: 8.4 Hours

Environment

Temp: -182 °C

Axial Tilt: 47.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 50,956,067 km

• M1: 172,935 km (0.103 R)
• M2: 658,081 km (0.063 R)
• M3: 2,366,638 km (0.088 R)
• M4: 3,265,123 km (0.082 R)
• M5: 4,804,485 km (0.114 R)
• M6: 6,245,113 km (0.091 R)
• M7: 7,400,008 km (0.083 R)
• M8: 8,004,683 km (0.103 R)
• M9: 8,743,397 km (0.062 R)
• M10: 9,313,515 km (0.114 R)
• M11: 10,760,575 km (0.048 R)
• M12: 14,027,044 km (0.098 R)
• M13: 17,093,501 km (0.119 R)
• M14: 18,655,902 km (0.052 R)
• M15: 20,311,800 km (0.079 R)
• M16: 21,593,106 km (0.077 R)
• M17: 22,063,592 km (0.073 R)
• M18: 25,134,985 km (0.09 R)
• M19: 32,113,427 km (0.077 R)
• M20: 33,977,416 km (0.094 R)
• M21: 41,720,303 km (0.083 R)
• M22: 42,745,647 km (0.111 R)
• M23: 44,390,625 km (0.099 R)
• M24: 46,544,834 km (0.067 R)
• M25: 47,966,014 km (0.106 R)
• M26: 51,227,397 km (0.05 R)
• M27: 52,234,041 km (0.065 R)
• M28: 55,684,666 km (0.069 R)
• M29: 56,748,755 km (0.064 R)
• M30: 59,652,749 km (0.067 R)

Planet 9 - Gas Giant

Semi-Major Axis: 11.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 383.6

Radius: 11.1

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 11.48 AU - 12.26 AU

Year: 14647 Days

Day: 9.9 Hours

Environment

Temp: -173 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 50,956,067 km

• M1: 159,471 km (0.067 R)
• M2: 885,320 km (0.108 R)
• M3: 1,339,350 km (0.03 R)
• M4: 3,152,476 km (0.114 R)
• M5: 4,893,496 km (0.11 R)
• M6: 6,760,777 km (0.085 R)
• M7: 7,660,907 km (0.096 R)
• M8: 8,409,794 km (0.064 R)
• M9: 9,062,489 km (0.098 R)
• M10: 12,366,957 km (0.108 R)
• M11: 17,124,169 km (0.091 R)
• M12: 19,264,316 km (0.117 R)
• M13: 19,745,124 km (0.081 R)
• M14: 21,235,717 km (0.072 R)
• M15: 25,098,334 km (0.104 R)
• M16: 31,678,247 km (0.104 R)
• M17: 40,488,664 km (0.032 R)

Kuiper Belt

Range: 30.6 - 59.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 507 - 17,772 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit