🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 59.8

Radius: 11.7

Gravity: 0.44 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.55 AU - 0.55 AU

Year: 282 Days

Day: 6.6 Hours

Environment

Temp: -143 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 72,652,025 km

• M1: 145,559 km (0.086 R)
• M2: 547,079 km (0.115 R)
• M3: 1,016,966 km (0.053 R)
• M4: 1,532,481 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 82

Radius: 8.3

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.55 AU - 0.61 AU

Year: 305 Days

Day: 7.8 Hours

Environment

Temp: -142 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 72,652,025 km

• M1: 121,922 km (0.096 R)
• M2: 429,196 km (0.113 R)
• M3: 722,109 km (0.087 R)
• M4: 1,081,443 km (0.043 R)
• M5: 1,513,781 km (0.117 R)
• M6: 1,840,652 km (0.074 R)
• M7: 2,107,086 km (0.08 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 426.2

Radius: 12.1

Gravity: 2.91 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 0.59 AU - 0.61 AU

Year: 321 Days

Day: 13.5 Hours

Environment

Temp: -152 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 72,652,025 km

• M1: 150,795 km (0.087 R)
• M2: 530,474 km (0.091 R)
• M3: 1,611,767 km (0.085 R)
• M4: 2,017,926 km (0.088 R)
• M5: 2,881,853 km (0.064 R)
• M6: 3,954,919 km (0.034 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 381

Radius: 11.5

Gravity: 2.88 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 1.75 AU - 2.17 AU

Year: 1894 Days

Day: 9 Hours

Environment

Temp: -207 °C

Axial Tilt: 45.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 72,652,025 km

• M1: 143,016 km (0.069 R)
• M2: 713,432 km (0.098 R)
• M3: 1,338,303 km (0.114 R)
• M4: 1,858,754 km (0.105 R)
• M5: 2,413,163 km (0.116 R)
• M6: 2,906,537 km (0.087 R)
• M7: 3,529,463 km (0.097 R)
• M8: 4,330,410 km (0.09 R)
• M9: 5,002,403 km (0.075 R)
• M10: 6,339,060 km (0.082 R)
• M11: 6,726,219 km (0.074 R)
• M12: 7,206,578 km (0.066 R)
• M13: 8,067,364 km (0.116 R)
• M14: 8,580,784 km (0.103 R)
• M15: 11,097,619 km (0.119 R)
• M16: 11,805,666 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 529

Radius: 11.3

Gravity: 4.14 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 2.06 AU - 3.38 AU

Year: 3096 Days

Day: 13.4 Hours

Environment

Temp: -202 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 72,652,025 km

• M1: 140,772 km (0.071 R)
• M2: 560,693 km (0.081 R)
• M3: 919,129 km (0.101 R)
• M4: 1,391,111 km (0.109 R)
• M5: 1,785,750 km (0.117 R)
• M6: 2,983,430 km (0.094 R)
• M7: 3,376,125 km (0.083 R)
• M8: 3,822,674 km (0.085 R)
• M9: 4,350,755 km (0.09 R)
• M10: 4,812,414 km (0.077 R)
• M11: 5,186,109 km (0.088 R)
• M12: 5,604,235 km (0.114 R)
• M13: 7,538,835 km (0.101 R)
• M14: 8,272,762 km (0.081 R)
• M15: 8,983,951 km (0.097 R)
• M16: 10,297,569 km (0.118 R)
• M17: 11,000,380 km (0.101 R)
• M18: 14,857,462 km (0.088 R)
• M19: 15,401,849 km (0.113 R)
• M20: 18,213,690 km (0.072 R)
• M21: 19,010,149 km (0.101 R)

Asteroid Belt

Center: 4.44 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Ice Giant

Semi-Major Axis: 6.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 48.2

Radius: 4.6

Gravity: 2.28 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 6.14 AU - 6.16 AU

Year: 10527 Days

Day: 18.5 Hours

Environment

Temp: -231 °C

Axial Tilt: 49.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 72,652,025 km

• M1: 61,634 km (0.073 R)
• M2: 477,367 km (0.112 R)
• M3: 2,110,527 km (0.025 R)
• M4: 3,624,308 km (0.094 R)
• M5: 7,584,612 km (0.092 R)
• M6: 10,011,538 km (0.081 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 606.6

Radius: 6

Gravity: 16.85 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 7.2 AU - 11.56 AU

Year: 19830 Days

Day: 19.4 Hours

Environment

Temp: -233 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 72,652,025 km

• M1: 74,649 km (0.051 R)
• M2: 425,008 km (0.086 R)
• M3: 1,394,851 km (0.106 R)
• M4: 1,956,890 km (0.098 R)
• M5: 2,236,787 km (0.116 R)
• M6: 3,054,938 km (0.114 R)
• M7: 3,546,218 km (0.042 R)
• M8: 3,871,443 km (0.037 R)
• M9: 4,248,729 km (0.111 R)
• M10: 4,719,514 km (0.078 R)
• M11: 4,931,793 km (0.112 R)
• M12: 5,490,242 km (0.043 R)
• M13: 8,001,242 km (0.037 R)
• M14: 14,016,722 km (0.114 R)
• M15: 15,673,070 km (0.117 R)
• M16: 20,751,169 km (0.111 R)
• M17: 21,130,550 km (0.085 R)
• M18: 25,505,988 km (0.1 R)
• M19: 27,846,896 km (0.038 R)
• M20: 52,106,584 km (0.085 R)
• M21: 52,456,194 km (0.104 R)
• M22: 56,405,728 km (0.087 R)
• M23: 56,959,090 km (0.072 R)
• M24: 63,686,357 km (0.101 R)
• M25: 66,314,043 km (0.055 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 158 - 18,522 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit