🌌 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: 4.24

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.42 AU - 0.68 AU

Year: 268 Days

Day: 46.3 Hours

Environment

Temp: -119 °C

Axial Tilt: 59.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.18

Radius: 0.5

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.54 AU - 0.58 AU

Year: 275 Days

Day: 21.3 Hours

Environment

Temp: -124 °C

Axial Tilt: 172.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 79,637,572 km

• M1: 190,588 km (0.042 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 916.5

Radius: 13.4

Gravity: 5.1 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.61 AU - 0.81 AU

Year: 392 Days

Day: 14.9 Hours

Environment

Temp: -136 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 79,637,572 km

• M1: 166,652 km (0.106 R)
• M2: 641,625 km (0.043 R)
• M3: 1,090,568 km (0.082 R)
• M4: 1,567,038 km (0.11 R)
• M5: 2,007,603 km (0.117 R)
• M6: 2,465,223 km (0.05 R)
• M7: 3,170,278 km (0.085 R)
• M8: 3,784,677 km (0.12 R)
• M9: 4,564,381 km (0.052 R)
• M10: 5,126,121 km (0.038 R)
• M11: 5,648,965 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 887

Radius: 13.8

Gravity: 4.66 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 0.76 AU - 0.76 AU

Year: 435 Days

Day: 10 Hours

Environment

Temp: -143 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 79,637,572 km

• M1: 171,589 km (0.108 R)
• M2: 807,829 km (0.026 R)
• M3: 1,348,176 km (0.106 R)
• M4: 2,045,601 km (0.116 R)
• M5: 2,898,908 km (0.114 R)
• M6: 3,805,471 km (0.116 R)
• M7: 4,862,529 km (0.097 R)
• M8: 5,360,092 km (0.115 R)
• M9: 6,143,237 km (0.107 R)

Asteroid Belt

Center: 5.9 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Ice Giant

Semi-Major Axis: 11.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 544

Radius: 3.6

Gravity: 41.98 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 10.14 AU - 11.92 AU

Year: 24031 Days

Day: 16.6 Hours

Environment

Temp: -239 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 79,637,572 km

• M1: 44,730 km (0.109 R)
• M2: 508,932 km (0.082 R)
• M3: 880,832 km (0.084 R)
• M4: 1,395,898 km (0.113 R)
• M5: 2,129,974 km (0.09 R)
• M6: 2,879,161 km (0.057 R)
• M7: 4,043,780 km (0.09 R)
• M8: 4,481,503 km (0.108 R)
• M9: 5,733,488 km (0.068 R)
• M10: 8,047,468 km (0.102 R)
• M11: 10,727,514 km (0.097 R)
• M12: 12,370,098 km (0.049 R)
• M13: 19,383,546 km (0.103 R)
• M14: 22,207,056 km (0.08 R)
• M15: 22,720,027 km (0.104 R)
• M16: 23,876,269 km (0.102 R)
• M17: 41,565,170 km (0.086 R)
• M18: 48,924,637 km (0.108 R)
• M19: 55,777,865 km (0.046 R)
• M20: 60,618,703 km (0.088 R)
• M21: 68,070,322 km (0.075 R)
• M22: 68,934,250 km (0.079 R)
• M23: 73,589,287 km (0.032 R)
• M24: 76,109,413 km (0.04 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 552 - 17,359 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit