🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.33

Radius: 1.12

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 0.71 AU - 0.77 AU

Year: 237 Days

Day: 23 Hours

Environment

Temp: 131 °C

Axial Tilt: 15.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.82 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.51

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.76 AU - 0.88 AU

Year: 277 Days

Day: 40.4 Hours

Environment

Temp: 168 °C

Axial Tilt: 23.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 86,786,196 km

• M1: 481,855 km (0.102 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.26 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.76

Radius: 1.87

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 1.16 AU - 1.36 AU

Year: 527 Days

Day: 12.6 Hours

Environment

Temp: -14 °C

Axial Tilt: 4.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Asteroid Belt

Center: 5.7 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 10.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 683.4

Radius: 14.9

Gravity: 3.08 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 9.68 AU - 10.58 AU

Year: 12019 Days

Day: 13.1 Hours

Environment

Temp: -184 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 86,786,196 km

• M1: 255,214 km (0.103 R)
• M2: 1,059,153 km (0.107 R)
• M3: 1,761,814 km (0.12 R)
• M4: 3,030,703 km (0.096 R)
• M5: 4,844,577 km (0.038 R)
• M6: 8,037,894 km (0.084 R)
• M7: 10,020,963 km (0.12 R)
• M8: 11,098,816 km (0.07 R)
• M9: 13,549,079 km (0.103 R)
• M10: 16,413,729 km (0.098 R)
• M11: 17,833,861 km (0.105 R)
• M12: 18,298,961 km (0.039 R)
• M13: 19,579,070 km (0.12 R)
• M14: 21,175,728 km (0.117 R)
• M15: 21,873,303 km (0.092 R)
• M16: 23,406,980 km (0.088 R)
• M17: 24,914,777 km (0.117 R)
• M18: 25,988,441 km (0.062 R)
• M19: 28,648,591 km (0.047 R)
• M20: 31,261,018 km (0.108 R)
• M21: 34,266,439 km (0.098 R)
• M22: 36,955,760 km (0.116 R)
• M23: 37,840,333 km (0.118 R)
• M24: 39,651,514 km (0.114 R)
• M25: 40,179,595 km (0.065 R)

Planet 5 - Ice Giant

Semi-Major Axis: 16.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 651.3

Radius: 4.9

Gravity: 27.13 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 16.32 AU - 16.68 AU

Year: 24985 Days

Day: 16.5 Hours

Environment

Temp: -204 °C

Axial Tilt: 45.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 86,786,196 km

• M1: 63,579 km (0.08 R)
• M2: 247,136 km (0.075 R)
• M3: 450,589 km (0.102 R)
• M4: 899,083 km (0.055 R)
• M5: 1,116,150 km (0.075 R)
• M6: 1,620,594 km (0.082 R)
• M7: 2,220,182 km (0.099 R)
• M8: 3,149,334 km (0.097 R)
• M9: 3,653,180 km (0.104 R)
• M10: 5,284,994 km (0.115 R)
• M11: 5,528,539 km (0.101 R)
• M12: 5,994,536 km (0.099 R)
• M13: 7,199,547 km (0.062 R)
• M14: 9,592,215 km (0.098 R)
• M15: 14,177,390 km (0.065 R)
• M16: 27,936,056 km (0.104 R)
• M17: 30,449,749 km (0.074 R)
• M18: 37,088,902 km (0.1 R)
• M19: 56,581,056 km (0.064 R)
• M20: 60,378,897 km (0.113 R)
• M21: 62,027,616 km (0.094 R)
• M22: 62,444,395 km (0.066 R)
• M23: 62,863,120 km (0.1 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 461 - 18,901 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit