🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.79

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.45 AU - 0.57 AU

Year: 129 Days

Day: 36.2 Hours

Environment

Temp: 214 °C

Axial Tilt: 29.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 83,528,217 km

• M1: 89,011 km (0.1 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.63

Radius: 0.83

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.58 AU - 0.72 AU

Year: 186 Days

Day: 40.6 Hours

Environment

Temp: 175 °C

Axial Tilt: 39.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.87 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.62

Radius: 1.67

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.84 AU - 0.9 AU

Year: 288 Days

Day: 18.2 Hours

Environment

Temp: 178 °C

Axial Tilt: 37.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 83,528,217 km

• M1: 38,895 km (0.116 R)
• M2: 281,693 km (0.072 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.55

Radius: 1.19

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 2.19 AU - 3.39 AU

Year: 1653 Days

Day: 17.5 Hours

Environment

Temp: -89 °C

Axial Tilt: 38.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 4.15 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.17

Radius: 1.36

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 4.03 AU - 4.27 AU

Year: 2999 Days

Day: 45.5 Hours

Environment

Temp: -122 °C

Axial Tilt: 36.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 9.23 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Ice Giant

Semi-Major Axis: 14.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 593.2

Radius: 7.5

Gravity: 10.55 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 12.42 AU - 16.2 AU

Year: 19204 Days

Day: 24.2 Hours

Environment

Temp: -193 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 83,528,217 km

• M1: 94,247 km (0.111 R)
• M2: 451,935 km (0.087 R)
• M3: 755,469 km (0.107 R)
• M4: 1,008,140 km (0.075 R)
• M5: 2,913,269 km (0.072 R)
• M6: 3,247,171 km (0.06 R)
• M7: 4,437,821 km (0.088 R)
• M8: 8,135,731 km (0.05 R)
• M9: 8,852,454 km (0.081 R)
• M10: 9,444,562 km (0.117 R)
• M11: 9,778,465 km (0.087 R)
• M12: 11,255,594 km (0.11 R)
• M13: 15,473,057 km (0.03 R)
• M14: 20,176,714 km (0.09 R)
• M15: 23,352,527 km (0.068 R)
• M16: 24,066,557 km (0.097 R)
• M17: 26,846,535 km (0.098 R)
• M18: 30,552,972 km (0.097 R)
• M19: 31,284,056 km (0.09 R)
• M20: 37,835,545 km (0.076 R)
• M21: 38,962,167 km (0.042 R)
• M22: 44,464,676 km (0.07 R)
• M23: 48,957,399 km (0.116 R)
• M24: 61,108,636 km (0.064 R)
• M25: 66,850,052 km (0.104 R)
• M26: 69,956,153 km (0.06 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 879.5

Radius: 4.7

Gravity: 39.81 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 13.94 AU - 15.76 AU

Year: 20301 Days

Day: 21.5 Hours

Environment

Temp: -196 °C

Axial Tilt: 43.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 83,528,217 km

• M1: 58,493 km (0.116 R)
• M2: 259,253 km (0.112 R)
• M3: 440,267 km (0.119 R)
• M4: 696,677 km (0.086 R)
• M5: 1,197,980 km (0.086 R)
• M6: 1,559,558 km (0.043 R)
• M7: 2,497,237 km (0.116 R)
• M8: 3,003,925 km (0.034 R)
• M9: 3,637,173 km (0.119 R)
• M10: 4,674,784 km (0.115 R)
• M11: 7,315,186 km (0.057 R)
• M12: 7,715,510 km (0.072 R)
• M13: 8,835,699 km (0.084 R)
• M14: 10,936,502 km (0.077 R)
• M15: 12,984,048 km (0.06 R)
• M16: 14,174,249 km (0.105 R)
• M17: 14,482,719 km (0.114 R)
• M18: 14,874,666 km (0.104 R)
• M19: 18,359,698 km (0.062 R)
• M20: 19,097,814 km (0.077 R)
• M21: 19,951,569 km (0.084 R)
• M22: 21,029,421 km (0.038 R)
• M23: 21,633,348 km (0.046 R)
• M24: 23,946,730 km (0.102 R)
• M25: 27,241,323 km (0.097 R)
• M26: 27,958,645 km (0.089 R)
• M27: 30,697,034 km (0.079 R)
• M28: 33,066,365 km (0.077 R)
• M29: 33,472,673 km (0.119 R)
• M30: 36,989,719 km (0.108 R)
• M31: 37,869,055 km (0.104 R)
• M32: 40,900,507 km (0.102 R)
• M33: 41,682,904 km (0.076 R)
• M34: 47,613,113 km (0.102 R)
• M35: 51,500,413 km (0.116 R)
• M36: 54,268,872 km (0.066 R)
• M37: 65,480,185 km (0.06 R)
• M38: 66,120,912 km (0.112 R)
• M39: 67,632,001 km (0.119 R)
• M40: 70,052,943 km (0.1 R)

Kuiper Belt

Range: 30.9 - 51.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 193 - 20,151 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit