🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.82 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.69

Radius: 0.86

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 0.79 AU - 0.85 AU

Year: 265 Days

Day: 46.1 Hours

Environment

Temp: 173 °C

Axial Tilt: 34.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.27 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.09

Radius: 1.76

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 1.21 AU - 1.33 AU

Year: 510 Days

Day: 36.9 Hours

Environment

Temp: 20 °C

Axial Tilt: 44.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.44

Radius: 1.43

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 1.8 AU - 2.06 AU

Year: 956 Days

Day: 19.2 Hours

Environment

Temp: -53 °C

Axial Tilt: 1.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 10.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 111.3

Radius: 11.7

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 7.76 AU - 12.86 AU

Year: 11800 Days

Day: 7.6 Hours

Environment

Temp: -182 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 48,615,227 km

• M1: 235,916 km (0.073 R)
• M2: 668,104 km (0.08 R)
• M3: 1,088,923 km (0.116 R)
• M4: 1,467,854 km (0.094 R)
• M5: 1,909,467 km (0.106 R)
• M6: 2,758,585 km (0.11 R)
• M7: 3,319,427 km (0.09 R)
• M8: 3,821,926 km (0.066 R)
• M9: 5,331,668 km (0.057 R)
• M10: 7,907,594 km (0.107 R)
• M11: 9,734,184 km (0.095 R)
• M12: 18,373,610 km (0.119 R)
• M13: 20,289,810 km (0.066 R)
• M14: 20,771,515 km (0.111 R)
• M15: 27,750,106 km (0.085 R)
• M16: 28,859,972 km (0.1 R)

Planet 5 - Ice Giant

Semi-Major Axis: 14.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 886.6

Radius: 6.8

Gravity: 19.17 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 11.77 AU - 16.41 AU

Year: 18852 Days

Day: 19.9 Hours

Environment

Temp: -190 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 48,615,227 km

• M1: 84,523 km (0.075 R)
• M2: 435,779 km (0.068 R)
• M3: 648,208 km (0.064 R)
• M4: 920,924 km (0.101 R)
• M5: 1,284,597 km (0.083 R)
• M6: 1,851,423 km (0.115 R)
• M7: 2,549,896 km (0.104 R)
• M8: 4,955,130 km (0.082 R)
• M9: 9,568,429 km (0.049 R)
• M10: 10,340,354 km (0.117 R)
• M11: 10,835,523 km (0.057 R)
• M12: 13,624,626 km (0.087 R)
• M13: 19,619,611 km (0.093 R)
• M14: 20,091,592 km (0.068 R)
• M15: 22,156,193 km (0.059 R)
• M16: 28,107,046 km (0.07 R)
• M17: 28,345,954 km (0.101 R)
• M18: 29,314,750 km (0.097 R)
• M19: 30,430,900 km (0.093 R)
• M20: 31,833,230 km (0.078 R)
• M21: 51,624,131 km (0.11 R)
• M22: 52,704,078 km (0.097 R)
• M23: 67,715,177 km (0.034 R)
• M24: 71,423,110 km (0.107 R)
• M25: 72,988,502 km (0.095 R)

Planet 6 - Ice Giant

Semi-Major Axis: 19.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 78

Radius: 6.3

Gravity: 1.97 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 17.48 AU - 21.16 AU

Year: 30270 Days

Day: 16.2 Hours

Environment

Temp: -192 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 48,615,227 km

• M1: 126,859 km (0.099 R)
• M2: 783,444 km (0.062 R)
• M3: 1,166,863 km (0.075 R)
• M4: 1,482,664 km (0.098 R)
• M5: 1,886,878 km (0.092 R)
• M6: 2,497,237 km (0.118 R)
• M7: 4,680,618 km (0.115 R)
• M8: 5,247,295 km (0.09 R)
• M9: 5,684,420 km (0.108 R)
• M10: 6,942,538 km (0.084 R)
• M11: 9,845,485 km (0.108 R)
• M12: 12,214,816 km (0.057 R)
• M13: 14,096,009 km (0.108 R)
• M14: 21,553,463 km (0.116 R)
• M15: 23,111,674 km (0.094 R)
• M16: 23,467,867 km (0.04 R)
• M17: 24,282,577 km (0.114 R)
• M18: 24,558,286 km (0.115 R)
• M19: 30,950,453 km (0.095 R)
• M20: 39,498,326 km (0.112 R)
• M21: 46,605,122 km (0.025 R)

Kuiper Belt

Range: 30.8 - 59.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 330 - 20,091 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit