🌌 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: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.75

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.46 AU - 0.6 AU

Year: 145 Days

Day: 40.9 Hours

Environment

Temp: 163 °C

Axial Tilt: 7.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 40,683,015 km

• M1: 305,628 km (0.043 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.25 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.4

Radius: 0.69

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.21 AU - 1.29 AU

Year: 524 Days

Day: 14.9 Hours

Environment

Temp: -20 °C

Axial Tilt: 18.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Gas Giant

Semi-Major Axis: 4.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 338.2

Radius: 14.9

Gravity: 1.52 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 3.86 AU - 5.56 AU

Year: 3831 Days

Day: 13 Hours

Environment

Temp: -149 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 40,683,015 km

• M1: 185,501 km (0.118 R)
• M2: 1,481,019 km (0.117 R)
• M3: 2,320,413 km (0.119 R)
• M4: 3,132,579 km (0.086 R)
• M5: 7,698,157 km (0.106 R)
• M6: 10,784,062 km (0.109 R)
• M7: 12,909,249 km (0.069 R)
• M8: 14,956,346 km (0.093 R)
• M9: 16,733,120 km (0.099 R)
• M10: 19,104,246 km (0.102 R)
• M11: 19,922,397 km (0.041 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 578.4

Radius: 10.9

Gravity: 4.87 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 4.83 AU - 6.89 AU

Year: 5316 Days

Day: 8.4 Hours

Environment

Temp: -152 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 40,683,015 km

• M1: 141,071 km (0.116 R)
• M2: 490,980 km (0.115 R)
• M3: 1,132,905 km (0.099 R)
• M4: 1,772,286 km (0.071 R)
• M5: 2,250,700 km (0.105 R)
• M6: 2,904,891 km (0.103 R)
• M7: 3,267,367 km (0.102 R)
• M8: 4,369,155 km (0.094 R)
• M9: 5,909,864 km (0.092 R)
• M10: 6,369,429 km (0.075 R)
• M11: 8,413,983 km (0.114 R)
• M12: 9,482,111 km (0.028 R)
• M13: 10,549,791 km (0.093 R)
• M14: 13,384,970 km (0.089 R)
• M15: 13,804,892 km (0.113 R)
• M16: 16,097,479 km (0.041 R)
• M17: 17,179,969 km (0.059 R)
• M18: 17,991,388 km (0.063 R)
• M19: 18,697,939 km (0.096 R)
• M20: 21,854,155 km (0.064 R)
• M21: 22,290,382 km (0.104 R)
• M22: 28,851,146 km (0.078 R)

Planet 5 - Ice Giant

Semi-Major Axis: 13.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 123.4

Radius: 6.9

Gravity: 2.59 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 11.77 AU - 15.07 AU

Year: 18423 Days

Day: 21.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 40,683,015 km

• M1: 86,318 km (0.105 R)
• M2: 410,646 km (0.117 R)
• M3: 626,217 km (0.047 R)
• M4: 2,125,487 km (0.05 R)
• M5: 2,645,190 km (0.07 R)
• M6: 4,491,826 km (0.034 R)
• M7: 4,832,909 km (0.063 R)
• M8: 5,439,528 km (0.103 R)
• M9: 6,914,114 km (0.094 R)
• M10: 8,723,949 km (0.094 R)
• M11: 9,165,263 km (0.112 R)
• M12: 9,667,912 km (0.111 R)
• M13: 13,891,658 km (0.093 R)
• M14: 14,862,997 km (0.099 R)
• M15: 16,205,489 km (0.103 R)
• M16: 19,950,222 km (0.111 R)
• M17: 20,484,287 km (0.069 R)
• M18: 21,982,061 km (0.102 R)
• M19: 23,551,342 km (0.052 R)
• M20: 28,995,957 km (0.098 R)
• M21: 32,320,919 km (0.105 R)
• M22: 37,713,773 km (0.102 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: 511 - 16,544 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit