🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 5

Radius: 1.9

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.46 AU - 0.64 AU

Year: 263 Days

Day: 41.2 Hours

Environment

Temp: -128 °C

Axial Tilt: 17.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 14,395,818 km

• M1: 141,669 km (0.05 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 165.3

Radius: 12.7

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.67 AU - 0.81 AU

Year: 411 Days

Day: 9.1 Hours

Environment

Temp: -148 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 14,395,818 km

• M1: 157,975 km (0.116 R)
• M2: 657,782 km (0.114 R)
• M3: 2,214,348 km (0.05 R)
• M4: 3,023,971 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 29

Radius: 12.4

Gravity: 0.19 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 1.67 AU - 2.17 AU

Year: 1718 Days

Day: 11.3 Hours

Environment

Temp: -192 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 14,395,818 km

• M1: 155,432 km (0.106 R)
• M2: 739,761 km (0.08 R)
• M3: 1,687,614 km (0.075 R)
• M4: 3,829,556 km (0.071 R)
• M5: 4,221,652 km (0.074 R)
• M6: 4,882,276 km (0.064 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 221.4

Radius: 8.2

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 4.41 AU - 4.73 AU

Year: 6308 Days

Day: 8.7 Hours

Environment

Temp: -216 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 14,395,818 km

• M1: 102,325 km (0.059 R)
• M2: 362,027 km (0.072 R)
• M3: 999,613 km (0.056 R)
• M4: 1,643,931 km (0.041 R)
• M5: 2,140,297 km (0.073 R)
• M6: 2,447,122 km (0.093 R)
• M7: 2,816,778 km (0.098 R)
• M8: 3,392,880 km (0.105 R)
• M9: 4,045,126 km (0.087 R)
• M10: 4,706,199 km (0.091 R)
• M11: 5,437,284 km (0.098 R)
• M12: 8,508,229 km (0.045 R)
• M13: 11,143,994 km (0.097 R)
• M14: 12,116,530 km (0.077 R)
• M15: 13,240,758 km (0.116 R)
• M16: 14,027,792 km (0.078 R)
• M17: 14,331,027 km (0.097 R)
• M18: 17,258,957 km (0.067 R)
• M19: 20,563,424 km (0.108 R)
• M20: 23,978,594 km (0.06 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 15

Radius: 3.9

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 5.29 AU - 8.05 AU

Year: 11123 Days

Day: 23.3 Hours

Environment

Temp: -233 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 14,395,818 km

• M1: 48,919 km (0.054 R)
• M2: 237,113 km (0.051 R)
• M3: 873,652 km (0.092 R)
• M4: 1,321,398 km (0.06 R)
• M5: 1,665,174 km (0.109 R)
• M6: 2,935,559 km (0.104 R)
• M7: 3,321,073 km (0.076 R)
• M8: 3,551,304 km (0.103 R)
• M9: 5,470,794 km (0.091 R)
• M10: 6,125,584 km (0.077 R)
• M11: 7,015,392 km (0.066 R)
• M12: 8,431,336 km (0.099 R)
• M13: 10,507,754 km (0.095 R)
• M14: 11,440,647 km (0.057 R)
• M15: 12,742,148 km (0.107 R)
• M16: 13,552,071 km (0.092 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 434 - 15,637 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit