🌌 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: 0.72 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.1

Radius: 1.57

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 0.72 AU - 0.72 AU

Year: 215 Days

Day: 24.8 Hours

Environment

Temp: 129 °C

Axial Tilt: 31.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.31 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.06

Radius: 1.34

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 1.25 AU - 1.37 AU

Year: 527 Days

Day: 24.7 Hours

Environment

Temp: 2 °C

Axial Tilt: 21 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 101,066,184 km

• M1: 31,864 km (0.098 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.59

Radius: 1.46

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 1.65 AU - 2.15 AU

Year: 920 Days

Day: 15.3 Hours

Environment

Temp: -48 °C

Axial Tilt: 38.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Ice Giant

Semi-Major Axis: 13.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 79.7

Radius: 7.1

Gravity: 1.58 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 11.6 AU - 15 AU

Year: 17047 Days

Day: 17.5 Hours

Environment

Temp: -173 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 101,066,184 km

• M1: 88,861 km (0.087 R)
• M2: 509,530 km (0.115 R)
• M3: 917,484 km (0.075 R)
• M4: 1,329,177 km (0.032 R)
• M5: 1,681,330 km (0.112 R)
• M6: 2,048,743 km (0.037 R)
• M7: 2,317,121 km (0.049 R)
• M8: 2,983,730 km (0.086 R)
• M9: 5,420,529 km (0.099 R)
• M10: 6,031,637 km (0.089 R)
• M11: 7,318,178 km (0.088 R)
• M12: 8,859,934 km (0.12 R)
• M13: 9,794,472 km (0.115 R)
• M14: 11,858,025 km (0.076 R)
• M15: 13,044,486 km (0.106 R)
• M16: 13,529,631 km (0.086 R)
• M17: 16,571,405 km (0.103 R)
• M18: 17,591,962 km (0.079 R)
• M19: 19,547,655 km (0.088 R)
• M20: 19,969,670 km (0.1 R)
• M21: 21,494,671 km (0.037 R)
• M22: 24,045,315 km (0.084 R)
• M23: 24,692,774 km (0.119 R)

Planet 5 - Ice Giant

Semi-Major Axis: 20.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 631.6

Radius: 4.3

Gravity: 34.16 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 17.81 AU - 22.57 AU

Year: 31885 Days

Day: 24.3 Hours

Environment

Temp: -190 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 101,066,184 km

• M1: 53,556 km (0.079 R)
• M2: 275,410 km (0.039 R)
• M3: 541,095 km (0.069 R)
• M4: 962,513 km (0.108 R)
• M5: 1,219,522 km (0.102 R)
• M6: 1,485,058 km (0.074 R)
• M7: 2,947,826 km (0.118 R)
• M8: 3,150,980 km (0.054 R)
• M9: 3,749,970 km (0.038 R)
• M10: 4,727,143 km (0.119 R)
• M11: 5,087,524 km (0.085 R)
• M12: 5,552,624 km (0.041 R)
• M13: 6,913,965 km (0.045 R)
• M14: 8,140,817 km (0.093 R)
• M15: 11,224,627 km (0.094 R)
• M16: 12,454,172 km (0.109 R)
• M17: 14,338,806 km (0.043 R)
• M18: 15,521,527 km (0.11 R)
• M19: 16,676,722 km (0.072 R)
• M20: 27,666,181 km (0.098 R)
• M21: 31,535,680 km (0.097 R)
• M22: 31,675,255 km (0.092 R)
• M23: 32,663,349 km (0.105 R)
• M24: 33,671,788 km (0.096 R)
• M25: 51,000,008 km (0.114 R)
• M26: 55,748,694 km (0.027 R)
• M27: 63,633,249 km (0.061 R)
• M28: 76,929,059 km (0.056 R)

Kuiper Belt

Range: 31.2 - 60.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 487 - 12,475 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit