🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.49 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.98 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.49

Radius: 1.65

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.9 AU - 1.06 AU

Year: 339 Days

Day: 41.6 Hours

Environment

Temp: 135 °C

Axial Tilt: 34.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.37 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.89

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 1.24 AU - 1.5 AU

Year: 561 Days

Day: 20.2 Hours

Environment

Temp: 17 °C

Axial Tilt: 1.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.48 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.55

Radius: 1.19

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 1.27 AU - 1.69 AU

Year: 630 Days

Day: 21.8 Hours

Environment

Temp: -15 °C

Axial Tilt: 23 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 20,795,129 km

• M1: 228,735 km (0.099 R)
• M2: 321,635 km (0.1 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.15

Radius: 1.06

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 1.86 AU - 2.28 AU

Year: 1042 Days

Day: 17.9 Hours

Environment

Temp: -57 °C

Axial Tilt: 31.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 20,795,129 km

• M1: 1,003,503 km (0.073 R)

Planet 5 - Gas Giant

Semi-Major Axis: 9.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 872

Radius: 12.1

Gravity: 5.96 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 7.05 AU - 11.47 AU

Year: 9858 Days

Day: 9.3 Hours

Environment

Temp: -159 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 20,795,129 km

• M1: 150,645 km (0.078 R)
• M2: 560,992 km (0.099 R)
• M3: 971,489 km (0.103 R)
• M4: 1,620,594 km (0.059 R)
• M5: 2,096,614 km (0.09 R)
• M6: 2,965,778 km (0.086 R)
• M7: 4,116,933 km (0.077 R)
• M8: 4,919,825 km (0.107 R)
• M9: 5,683,821 km (0.096 R)
• M10: 7,158,408 km (0.077 R)
• M11: 8,274,258 km (0.061 R)
• M12: 10,212,747 km (0.081 R)
• M13: 10,687,571 km (0.043 R)
• M14: 13,917,688 km (0.078 R)
• M15: 14,567,990 km (0.079 R)
• M16: 16,353,890 km (0.112 R)
• M17: 17,823,838 km (0.089 R)
• M18: 20,522,135 km (0.069 R)
• M19: 23,119,902 km (0.083 R)
• M20: 23,756,291 km (0.088 R)
• M21: 25,350,257 km (0.113 R)
• M22: 28,129,486 km (0.097 R)
• M23: 29,805,730 km (0.076 R)
• M24: 32,105,498 km (0.098 R)
• M25: 41,152,878 km (0.101 R)
• M26: 43,447,859 km (0.092 R)
• M27: 44,000,025 km (0.062 R)
• M28: 45,118,269 km (0.092 R)
• M29: 50,083,422 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 10.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 41.1

Radius: 8

Gravity: 0.64 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 8.81 AU - 11.91 AU

Year: 11666 Days

Day: 6 Hours

Environment

Temp: -164 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 20,795,129 km

• M1: 99,483 km (0.106 R)
• M2: 400,174 km (0.116 R)
• M3: 1,404,275 km (0.087 R)
• M4: 2,686,479 km (0.051 R)
• M5: 4,179,316 km (0.097 R)
• M6: 5,499,367 km (0.085 R)
• M7: 6,751,502 km (0.084 R)
• M8: 7,259,087 km (0.105 R)
• M9: 12,854,047 km (0.044 R)
• M10: 16,320,230 km (0.102 R)
• M11: 16,692,579 km (0.115 R)

Kuiper Belt

Range: 31.4 - 55.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 491 - 12,624 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit