🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.13

Radius: 1.35

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.45 AU - 0.73 AU

Year: 168 Days

Day: 29.1 Hours

Environment

Temp: 175 °C

Axial Tilt: 14.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.93 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.43

Radius: 0.71

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.92 AU - 0.94 AU

Year: 333 Days

Day: 28 Hours

Environment

Temp: 39 °C

Axial Tilt: 47.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.49

Radius: 1.17

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 1.9 AU - 2.04 AU

Year: 1025 Days

Day: 13.2 Hours

Environment

Temp: -65 °C

Axial Tilt: 10.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 6.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 515.8

Radius: 14.1

Gravity: 2.59 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 5.01 AU - 7.89 AU

Year: 6075 Days

Day: 13.5 Hours

Environment

Temp: -167 °C

Axial Tilt: 41 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 90,048,641 km

• M1: 175,329 km (0.074 R)
• M2: 872,904 km (0.106 R)
• M3: 1,614,460 km (0.046 R)
• M4: 2,092,276 km (0.108 R)
• M5: 3,066,756 km (0.088 R)
• M6: 3,636,724 km (0.087 R)
• M7: 4,599,536 km (0.081 R)
• M8: 5,845,088 km (0.061 R)
• M9: 7,445,785 km (0.117 R)
• M10: 10,172,805 km (0.116 R)
• M11: 10,617,110 km (0.064 R)
• M12: 13,088,617 km (0.104 R)
• M13: 14,046,043 km (0.105 R)
• M14: 15,221,583 km (0.097 R)
• M15: 20,097,726 km (0.093 R)
• M16: 21,299,745 km (0.073 R)
• M17: 22,102,786 km (0.069 R)
• M18: 23,077,716 km (0.066 R)
• M19: 24,713,119 km (0.079 R)
• M20: 27,522,717 km (0.053 R)

Planet 5 - Gas Giant

Semi-Major Axis: 10.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 111.1

Radius: 14.9

Gravity: 0.5 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 9.03 AU - 12.53 AU

Year: 13126 Days

Day: 8.3 Hours

Environment

Temp: -180 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 90,048,641 km

• M1: 186,997 km (0.105 R)
• M2: 976,874 km (0.054 R)
• M3: 1,555,519 km (0.073 R)
• M4: 2,061,758 km (0.111 R)
• M5: 3,237,298 km (0.086 R)
• M6: 3,872,790 km (0.076 R)
• M7: 6,615,816 km (0.099 R)
• M8: 7,864,061 km (0.112 R)
• M9: 12,007,623 km (0.108 R)
• M10: 17,049,221 km (0.05 R)
• M11: 17,614,102 km (0.029 R)
• M12: 28,970,226 km (0.082 R)

Planet 6 - Ice Giant

Semi-Major Axis: 18.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 556.9

Radius: 4.2

Gravity: 31.57 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 14.82 AU - 21.38 AU

Year: 28558 Days

Day: 22.3 Hours

Environment

Temp: -204 °C

Axial Tilt: 41.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 90,048,641 km

• M1: 52,359 km (0.055 R)
• M2: 434,881 km (0.114 R)
• M3: 838,945 km (0.114 R)
• M4: 3,228,023 km (0.033 R)
• M5: 3,527,368 km (0.083 R)
• M6: 4,685,106 km (0.106 R)
• M7: 4,990,585 km (0.064 R)
• M8: 6,672,364 km (0.116 R)
• M9: 7,982,842 km (0.102 R)
• M10: 8,812,063 km (0.07 R)
• M11: 11,573,938 km (0.096 R)
• M12: 11,780,982 km (0.072 R)
• M13: 12,706,394 km (0.077 R)
• M14: 16,112,439 km (0.072 R)
• M15: 17,072,259 km (0.075 R)
• M16: 17,250,878 km (0.094 R)
• M17: 18,629,722 km (0.097 R)
• M18: 22,341,993 km (0.109 R)
• M19: 26,280,307 km (0.039 R)
• M20: 32,399,159 km (0.103 R)
• M21: 37,716,466 km (0.059 R)
• M22: 40,501,529 km (0.049 R)
• M23: 47,174,941 km (0.028 R)
• M24: 54,351,599 km (0.064 R)
• M25: 60,136,250 km (0.06 R)
• M26: 67,202,355 km (0.088 R)
• M27: 68,543,800 km (0.062 R)
• M28: 75,040,686 km (0.062 R)
• M29: 84,238,561 km (0.063 R)
• M30: 87,111,289 km (0.081 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 456 - 20,392 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit