🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.03

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.48 AU - 0.72 AU

Year: 166 Days

Day: 36.6 Hours

Environment

Temp: 212 °C

Axial Tilt: 12.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.23

Radius: 1.09

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 1.35 AU - 1.85 AU

Year: 721 Days

Day: 33.8 Hours

Environment

Temp: -32 °C

Axial Tilt: 9.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.28

Radius: 1.39

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 1.55 AU - 1.79 AU

Year: 769 Days

Day: 31.8 Hours

Environment

Temp: -32 °C

Axial Tilt: 23.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.4

Radius: 0.69

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 1.74 AU - 1.78 AU

Year: 832 Days

Day: 43.8 Hours

Environment

Temp: -34 °C

Axial Tilt: 29.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 59,963,220 km

• M1: 33,061 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 11.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 904.9

Radius: 10.9

Gravity: 7.62 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 10.05 AU - 13.09 AU

Year: 14028 Days

Day: 13.3 Hours

Environment

Temp: -182 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 59,963,220 km

• M1: 137,331 km (0.118 R)
• M2: 579,542 km (0.099 R)
• M3: 956,828 km (0.101 R)
• M4: 1,332,019 km (0.099 R)
• M5: 1,876,107 km (0.103 R)
• M6: 2,586,248 km (0.103 R)
• M7: 3,631,788 km (0.115 R)
• M8: 4,127,854 km (0.078 R)
• M9: 4,768,881 km (0.085 R)
• M10: 5,970,601 km (0.105 R)
• M11: 7,639,066 km (0.112 R)
• M12: 9,598,648 km (0.044 R)
• M13: 10,665,879 km (0.119 R)
• M14: 17,458,221 km (0.083 R)
• M15: 27,661,693 km (0.088 R)
• M16: 47,446,760 km (0.051 R)
• M17: 50,191,133 km (0.102 R)
• M18: 55,113,950 km (0.076 R)
• M19: 55,464,907 km (0.062 R)
• M20: 55,817,359 km (0.115 R)
• M21: 56,704,923 km (0.06 R)
• M22: 63,375,492 km (0.115 R)

Planet 6 - Ice Giant

Semi-Major Axis: 13.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 455.8

Radius: 7.6

Gravity: 7.89 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 10.91 AU - 15.55 AU

Year: 17153 Days

Day: 17.2 Hours

Environment

Temp: -185 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 59,963,220 km

• M1: 97,239 km (0.113 R)
• M2: 339,737 km (0.103 R)
• M3: 758,461 km (0.054 R)
• M4: 1,196,035 km (0.073 R)
• M5: 2,325,200 km (0.113 R)
• M6: 3,728,428 km (0.086 R)
• M7: 4,821,390 km (0.083 R)
• M8: 5,159,631 km (0.082 R)
• M9: 5,441,623 km (0.087 R)
• M10: 5,921,832 km (0.07 R)
• M11: 9,893,057 km (0.043 R)
• M12: 14,432,006 km (0.115 R)
• M13: 19,421,843 km (0.038 R)
• M14: 19,676,608 km (0.098 R)
• M15: 21,341,632 km (0.079 R)
• M16: 27,747,263 km (0.101 R)
• M17: 29,836,847 km (0.106 R)
• M18: 35,074,418 km (0.032 R)
• M19: 39,654,356 km (0.078 R)

Kuiper Belt

Range: 30.8 - 49.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 288 - 16,287 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit