🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.27

Radius: 0.59

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.52 AU - 0.56 AU

Year: 140 Days

Day: 16.8 Hours

Environment

Temp: 216 °C

Axial Tilt: 33.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 58,404,923 km

• M1: 13,913 km (0.061 R)

Planet 2 - Terrestrial

Semi-Major Axis: 3.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.74

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 3.16 AU - 3.62 AU

Year: 2204 Days

Day: 32.9 Hours

Environment

Temp: -108 °C

Axial Tilt: 34.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.15

Radius: 0.47

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 3.5 AU - 3.54 AU

Year: 2332 Days

Day: 46.6 Hours

Environment

Temp: -109 °C

Axial Tilt: 25.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 8.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 291

Radius: 11.7

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 7.61 AU - 8.71 AU

Year: 8231 Days

Day: 5.7 Hours

Environment

Temp: -168 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 58,404,923 km

• M1: 146,905 km (0.099 R)
• M2: 514,018 km (0.097 R)
• M3: 1,120,787 km (0.12 R)
• M4: 1,578,706 km (0.087 R)
• M5: 2,380,701 km (0.103 R)
• M6: 3,739,199 km (0.114 R)
• M7: 5,050,873 km (0.113 R)
• M8: 5,948,610 km (0.061 R)
• M9: 7,401,654 km (0.08 R)
• M10: 10,006,751 km (0.096 R)
• M11: 11,952,122 km (0.052 R)
• M12: 15,973,462 km (0.107 R)
• M13: 17,833,712 km (0.093 R)
• M14: 19,219,138 km (0.116 R)
• M15: 19,627,839 km (0.075 R)
• M16: 20,042,375 km (0.098 R)
• M17: 21,176,327 km (0.113 R)
• M18: 22,804,849 km (0.041 R)
• M19: 25,157,874 km (0.102 R)
• M20: 26,813,773 km (0.104 R)
• M21: 27,754,893 km (0.112 R)
• M22: 28,629,592 km (0.101 R)
• M23: 29,073,598 km (0.114 R)
• M24: 29,884,718 km (0.032 R)

Planet 5 - Ice Giant

Semi-Major Axis: 14.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 324

Radius: 6.8

Gravity: 7.01 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 10.98 AU - 18.08 AU

Year: 19557 Days

Day: 22.9 Hours

Environment

Temp: -193 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 58,404,923 km

• M1: 84,523 km (0.091 R)
• M2: 356,193 km (0.09 R)
• M3: 1,040,304 km (0.099 R)
• M4: 2,086,591 km (0.081 R)
• M5: 2,874,224 km (0.071 R)
• M6: 3,184,789 km (0.112 R)
• M7: 3,733,664 km (0.096 R)
• M8: 4,045,575 km (0.119 R)
• M9: 5,724,363 km (0.073 R)
• M10: 6,101,050 km (0.063 R)
• M11: 6,334,871 km (0.078 R)
• M12: 6,820,616 km (0.111 R)
• M13: 7,685,142 km (0.114 R)
• M14: 8,915,435 km (0.092 R)
• M15: 9,217,024 km (0.087 R)
• M16: 11,056,479 km (0.106 R)
• M17: 16,927,747 km (0.075 R)
• M18: 19,243,372 km (0.062 R)
• M19: 20,346,806 km (0.097 R)
• M20: 20,782,136 km (0.084 R)
• M21: 24,102,611 km (0.105 R)
• M22: 24,590,150 km (0.109 R)
• M23: 25,584,826 km (0.116 R)
• M24: 26,092,113 km (0.051 R)
• M25: 26,813,623 km (0.116 R)
• M26: 30,621,487 km (0.1 R)
• M27: 37,309,111 km (0.12 R)
• M28: 38,887,368 km (0.091 R)
• M29: 56,330,480 km (0.05 R)

Kuiper Belt

Range: 31.1 - 47.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 503 - 16,216 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit