🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.83

Radius: 1.88

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.69 AU - 0.71 AU

Year: 205 Days

Day: 29.2 Hours

Environment

Temp: 135 °C

Axial Tilt: 26.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 99,458,343 km

• M1: 45,927 km (0.1 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.83 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.96

Radius: 1.54

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 0.79 AU - 0.87 AU

Year: 265 Days

Day: 27.7 Hours

Environment

Temp: 185 °C

Axial Tilt: 32.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 99,458,343 km

• M1: 35,903 km (0.06 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.05 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.62

Radius: 1.21

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 1.03 AU - 1.07 AU

Year: 376 Days

Day: 12.8 Hours

Environment

Temp: 122 °C

Axial Tilt: 31.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.61

Radius: 1.21

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 1.63 AU - 2.19 AU

Year: 923 Days

Day: 28.9 Hours

Environment

Temp: -51 °C

Axial Tilt: 15.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 99,458,343 km

• M1: 28,274 km (0.094 R)
• M2: 484,099 km (0.051 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.1 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.02

Radius: 1.01

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 3.1 AU - 3.1 AU

Year: 1909 Days

Day: 15.4 Hours

Environment

Temp: -87 °C

Axial Tilt: 8.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.84 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.26

Radius: 1.1

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 3.53 AU - 4.15 AU

Year: 2633 Days

Day: 45.1 Hours

Environment

Temp: -113 °C

Axial Tilt: 46.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 99,458,343 km

• M1: 2,177,098 km (0.074 R)

Asteroid Belt

Center: 8.19 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 12.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 964.7

Radius: 9.7

Gravity: 10.25 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 10.88 AU - 14.18 AU

Year: 15517 Days

Day: 8.8 Hours

Environment

Temp: -186 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 99,458,343 km

• M1: 120,875 km (0.098 R)
• M2: 835,055 km (0.06 R)
• M3: 1,230,442 km (0.101 R)
• M4: 1,615,807 km (0.051 R)
• M5: 2,081,206 km (0.117 R)
• M6: 2,520,874 km (0.106 R)
• M7: 3,021,727 km (0.106 R)
• M8: 3,616,529 km (0.083 R)
• M9: 3,942,203 km (0.043 R)
• M10: 4,585,025 km (0.058 R)
• M11: 8,322,279 km (0.058 R)
• M12: 9,434,390 km (0.061 R)
• M13: 9,940,330 km (0.085 R)
• M14: 10,405,130 km (0.112 R)
• M15: 11,006,364 km (0.079 R)
• M16: 12,146,898 km (0.117 R)
• M17: 12,611,101 km (0.025 R)
• M18: 13,859,196 km (0.038 R)
• M19: 14,293,029 km (0.104 R)
• M20: 17,171,442 km (0.057 R)
• M21: 19,591,636 km (0.09 R)
• M22: 20,322,871 km (0.106 R)
• M23: 21,357,789 km (0.094 R)
• M24: 23,126,784 km (0.085 R)
• M25: 27,630,278 km (0.096 R)
• M26: 29,017,050 km (0.093 R)
• M27: 29,370,849 km (0.086 R)
• M28: 30,815,067 km (0.084 R)
• M29: 34,499,812 km (0.095 R)
• M30: 37,483,691 km (0.108 R)
• M31: 41,078,678 km (0.115 R)
• M32: 42,427,153 km (0.111 R)
• M33: 43,342,393 km (0.119 R)
• M34: 44,583,157 km (0.112 R)
• M35: 55,193,536 km (0.025 R)
• M36: 58,320,580 km (0.113 R)
• M37: 58,884,415 km (0.118 R)
• M38: 67,991,335 km (0.103 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 156.3

Radius: 6.1

Gravity: 4.2 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 12.85 AU - 16.15 AU

Year: 19317 Days

Day: 20.5 Hours

Environment

Temp: -184 °C

Axial Tilt: 49.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 99,458,343 km

• M1: 219,909 km (0.056 R)
• M2: 776,114 km (0.083 R)
• M3: 2,227,363 km (0.043 R)
• M4: 2,956,802 km (0.087 R)
• M5: 5,610,219 km (0.058 R)
• M6: 8,212,624 km (0.106 R)
• M7: 11,362,557 km (0.099 R)
• M8: 12,879,329 km (0.049 R)
• M9: 13,413,543 km (0.093 R)
• M10: 16,377,227 km (0.117 R)
• M11: 19,056,974 km (0.05 R)
• M12: 21,681,668 km (0.026 R)
• M13: 23,471,756 km (0.117 R)
• M14: 26,670,458 km (0.095 R)
• M15: 28,823,022 km (0.106 R)
• M16: 38,108,113 km (0.102 R)

Planet 9 - Ice Giant

Semi-Major Axis: 18.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 783.3

Radius: 6.2

Gravity: 20.38 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 17.27 AU - 19.83 AU

Year: 27951 Days

Day: 23.1 Hours

Environment

Temp: -190 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 99,458,343 km

• M1: 77,193 km (0.094 R)
• M2: 515,514 km (0.091 R)
• M3: 2,526,110 km (0.027 R)
• M4: 2,814,385 km (0.114 R)
• M5: 3,124,501 km (0.114 R)
• M6: 3,333,639 km (0.102 R)
• M7: 4,752,575 km (0.115 R)
• M8: 5,927,068 km (0.063 R)
• M9: 6,202,029 km (0.096 R)
• M10: 6,437,496 km (0.1 R)
• M11: 7,180,249 km (0.112 R)
• M12: 11,912,927 km (0.107 R)
• M13: 12,130,742 km (0.093 R)
• M14: 15,125,392 km (0.045 R)
• M15: 15,380,905 km (0.066 R)
• M16: 17,906,716 km (0.066 R)
• M17: 20,800,836 km (0.113 R)
• M18: 21,116,936 km (0.059 R)
• M19: 25,523,491 km (0.109 R)
• M20: 26,007,440 km (0.095 R)
• M21: 26,868,974 km (0.036 R)
• M22: 27,749,358 km (0.073 R)
• M23: 32,300,723 km (0.043 R)
• M24: 32,583,015 km (0.077 R)
• M25: 34,019,005 km (0.041 R)
• M26: 35,197,836 km (0.119 R)
• M27: 36,251,304 km (0.105 R)
• M28: 37,016,647 km (0.06 R)
• M29: 43,875,559 km (0.091 R)
• M30: 45,624,957 km (0.077 R)
• M31: 55,274,618 km (0.101 R)
• M32: 57,520,381 km (0.117 R)
• M33: 69,197,393 km (0.093 R)
• M34: 70,611,242 km (0.065 R)
• M35: 73,740,231 km (0.027 R)
• M36: 80,273,170 km (0.11 R)
• M37: 81,311,379 km (0.075 R)
• M38: 83,679,813 km (0.078 R)
• M39: 84,479,414 km (0.101 R)
• M40: 89,940,633 km (0.079 R)
• M41: 96,799,097 km (0.082 R)

Kuiper Belt

Range: 31.4 - 50.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 488 - 12,351 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit