🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 746.6

Radius: 9.5

Gravity: 8.27 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 0.77 AU - 0.81 AU

Year: 461 Days

Day: 5.1 Hours

Environment

Temp: -149 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 40,922,447 km

• M1: 118,332 km (0.05 R)
• M2: 428,149 km (0.049 R)
• M3: 772,224 km (0.094 R)
• M4: 1,382,733 km (0.116 R)
• M5: 1,779,616 km (0.107 R)
• M6: 2,288,548 km (0.063 R)
• M7: 2,969,069 km (0.107 R)
• M8: 4,914,739 km (0.068 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 588.8

Radius: 14.2

Gravity: 2.92 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.72 AU - 1.18 AU

Year: 607 Days

Day: 6.8 Hours

Environment

Temp: -147 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 40,922,447 km

• M1: 176,525 km (0.048 R)
• M2: 677,978 km (0.116 R)
• M3: 1,502,411 km (0.07 R)
• M4: 2,088,386 km (0.083 R)
• M5: 2,644,292 km (0.105 R)
• M6: 3,678,761 km (0.079 R)
• M7: 4,528,477 km (0.106 R)
• M8: 5,824,892 km (0.054 R)
• M9: 6,599,211 km (0.08 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 57.3

Radius: 8.2

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 1.81 AU - 2.53 AU

Year: 2097 Days

Day: 6.1 Hours

Environment

Temp: -198 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 40,922,447 km

• M1: 102,026 km (0.115 R)
• M2: 428,448 km (0.082 R)
• M3: 771,327 km (0.07 R)
• M4: 1,064,239 km (0.056 R)
• M5: 1,577,958 km (0.113 R)
• M6: 2,014,934 km (0.096 R)
• M7: 2,306,500 km (0.098 R)
• M8: 2,999,437 km (0.117 R)
• M9: 3,713,468 km (0.103 R)
• M10: 5,091,863 km (0.113 R)
• M11: 5,710,450 km (0.086 R)
• M12: 6,700,339 km (0.061 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 247.6

Radius: 8.3

Gravity: 3.59 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 2.15 AU - 2.73 AU

Year: 2500 Days

Day: 5.3 Hours

Environment

Temp: -192 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 40,922,447 km

• M1: 103,223 km (0.034 R)
• M2: 365,019 km (0.087 R)
• M3: 858,692 km (0.098 R)
• M4: 1,172,399 km (0.093 R)
• M5: 1,553,574 km (0.03 R)
• M6: 1,940,135 km (0.118 R)
• M7: 2,220,780 km (0.07 R)
• M8: 2,700,092 km (0.088 R)
• M9: 3,434,019 km (0.077 R)
• M10: 4,166,002 km (0.094 R)
• M11: 5,913,903 km (0.036 R)
• M12: 6,436,149 km (0.114 R)
• M13: 8,131,093 km (0.046 R)
• M14: 8,776,907 km (0.105 R)
• M15: 9,809,132 km (0.064 R)
• M16: 11,742,834 km (0.064 R)
• M17: 12,001,340 km (0.113 R)
• M18: 13,350,712 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 707.6

Radius: 11.7

Gravity: 5.17 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 2.66 AU - 3.68 AU

Year: 3703 Days

Day: 10.2 Hours

Environment

Temp: -206 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 40,922,447 km

• M1: 145,559 km (0.027 R)
• M2: 515,215 km (0.081 R)
• M3: 951,742 km (0.103 R)
• M4: 1,699,731 km (0.036 R)
• M5: 2,531,794 km (0.113 R)
• M6: 4,013,412 km (0.1 R)
• M7: 4,414,783 km (0.1 R)
• M8: 5,016,914 km (0.074 R)
• M9: 5,895,054 km (0.102 R)
• M10: 6,445,424 km (0.078 R)
• M11: 7,254,150 km (0.066 R)
• M12: 7,716,857 km (0.032 R)
• M13: 8,960,613 km (0.063 R)
• M14: 10,169,962 km (0.102 R)
• M15: 11,662,800 km (0.047 R)
• M16: 12,438,465 km (0.07 R)
• M17: 12,958,467 km (0.097 R)
• M18: 14,658,198 km (0.092 R)
• M19: 15,561,619 km (0.098 R)
• M20: 17,597,048 km (0.107 R)
• M21: 18,192,597 km (0.088 R)
• M22: 19,676,907 km (0.116 R)
• M23: 21,107,063 km (0.096 R)
• M24: 22,189,852 km (0.119 R)
• M25: 23,810,895 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 238

Radius: 14.2

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 3.94 AU - 4.22 AU

Year: 5406 Days

Day: 14.5 Hours

Environment

Temp: -206 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 40,922,447 km

• M1: 176,974 km (0.108 R)
• M2: 870,061 km (0.076 R)
• M3: 3,689,532 km (0.082 R)
• M4: 5,671,554 km (0.095 R)
• M5: 7,121,906 km (0.088 R)
• M6: 9,094,354 km (0.119 R)
• M7: 13,562,693 km (0.108 R)
• M8: 14,337,610 km (0.11 R)
• M9: 15,922,898 km (0.057 R)
• M10: 18,137,695 km (0.082 R)
• M11: 19,990,315 km (0.061 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 261

Radius: 4.1

Gravity: 15.53 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 6.36 AU - 8.12 AU

Year: 12780 Days

Day: 20.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 40,922,447 km

• M1: 53,107 km (0.03 R)
• M2: 354,098 km (0.085 R)
• M3: 486,193 km (0.057 R)
• M4: 630,256 km (0.112 R)
• M5: 891,753 km (0.054 R)
• M6: 1,047,783 km (0.102 R)
• M7: 1,256,772 km (0.084 R)
• M8: 2,275,982 km (0.076 R)
• M9: 5,568,930 km (0.069 R)
• M10: 6,777,083 km (0.117 R)
• M11: 10,077,361 km (0.102 R)
• M12: 11,589,048 km (0.114 R)
• M13: 12,124,758 km (0.038 R)
• M14: 16,412,532 km (0.118 R)
• M15: 16,545,973 km (0.12 R)
• M16: 17,571,018 km (0.086 R)
• M17: 18,929,067 km (0.116 R)
• M18: 19,596,274 km (0.062 R)
• M19: 21,852,359 km (0.095 R)
• M20: 23,000,972 km (0.115 R)
• M21: 24,536,145 km (0.097 R)
• M22: 26,411,953 km (0.099 R)
• M23: 27,903,743 km (0.053 R)
• M24: 28,094,031 km (0.104 R)
• M25: 40,191,114 km (0.047 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: 517 - 15,496 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit