🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 864.8

Radius: 11.7

Gravity: 6.32 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.49 AU - 0.69 AU

Year: 302 Days

Day: 10.4 Hours

Environment

Temp: -157 °C

Axial Tilt: 47.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 76,679,311 km

• M1: 145,559 km (0.12 R)
• M2: 590,313 km (0.114 R)
• M3: 957,576 km (0.101 R)
• M4: 1,337,106 km (0.035 R)
• M5: 2,542,865 km (0.091 R)
• M6: 3,121,808 km (0.061 R)
• M7: 3,540,084 km (0.078 R)
• M8: 3,933,676 km (0.104 R)
• M9: 4,409,996 km (0.105 R)
• M10: 4,997,018 km (0.057 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 906.7

Radius: 12.8

Gravity: 5.53 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.46 AU - 0.72 AU

Year: 302 Days

Day: 5.1 Hours

Environment

Temp: -159 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 76,679,311 km

• M1: 160,519 km (0.073 R)
• M2: 560,842 km (0.104 R)
• M3: 1,027,887 km (0.113 R)
• M4: 1,728,454 km (0.112 R)
• M5: 2,435,304 km (0.078 R)
• M6: 3,049,553 km (0.061 R)
• M7: 3,646,598 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 25.1

Radius: 11.4

Gravity: 0.19 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 0.55 AU - 0.75 AU

Year: 349 Days

Day: 5.5 Hours

Environment

Temp: -148 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 76,679,311 km

• M1: 141,819 km (0.11 R)
• M2: 672,293 km (0.082 R)
• M3: 1,137,393 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 654.8

Radius: 11

Gravity: 5.41 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.59 AU - 0.73 AU

Year: 358 Days

Day: 7.2 Hours

Environment

Temp: -154 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 76,679,311 km

• M1: 136,732 km (0.105 R)
• M2: 517,010 km (0.074 R)
• M3: 875,148 km (0.092 R)
• M4: 1,469,051 km (0.089 R)
• M5: 1,855,014 km (0.053 R)
• M6: 2,241,126 km (0.098 R)
• M7: 3,478,300 km (0.097 R)
• M8: 3,870,845 km (0.09 R)
• M9: 4,213,873 km (0.086 R)
• M10: 4,831,413 km (0.05 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 108.6

Radius: 12.6

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 3.66 AU - 5.26 AU

Year: 6281 Days

Day: 10.1 Hours

Environment

Temp: -214 °C

Axial Tilt: 49.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 76,679,311 km

• M1: 159,322 km (0.106 R)
• M2: 570,865 km (0.106 R)
• M3: 1,015,321 km (0.086 R)
• M4: 1,720,675 km (0.114 R)
• M5: 2,390,424 km (0.054 R)
• M6: 3,030,105 km (0.062 R)
• M7: 4,192,032 km (0.103 R)
• M8: 5,080,194 km (0.041 R)
• M9: 5,680,979 km (0.117 R)
• M10: 6,712,756 km (0.112 R)
• M11: 7,170,675 km (0.109 R)
• M12: 10,485,165 km (0.087 R)
• M13: 11,341,164 km (0.118 R)
• M14: 12,117,428 km (0.09 R)
• M15: 13,776,019 km (0.051 R)
• M16: 17,593,009 km (0.096 R)
• M17: 18,801,311 km (0.111 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 159.7

Radius: 7.3

Gravity: 3 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 8.21 AU - 8.49 AU

Year: 16090 Days

Day: 18.8 Hours

Environment

Temp: -233 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 76,679,311 km

• M1: 90,806 km (0.104 R)
• M2: 459,714 km (0.064 R)
• M3: 978,071 km (0.087 R)
• M4: 1,556,566 km (0.11 R)
• M5: 2,205,222 km (0.061 R)
• M6: 2,876,468 km (0.076 R)
• M7: 6,245,262 km (0.04 R)
• M8: 6,526,058 km (0.084 R)
• M9: 9,041,097 km (0.065 R)
• M10: 10,835,673 km (0.064 R)
• M11: 11,605,354 km (0.068 R)
• M12: 14,073,120 km (0.076 R)
• M13: 19,792,097 km (0.106 R)
• M14: 21,729,839 km (0.101 R)
• M15: 24,303,969 km (0.083 R)
• M16: 27,822,511 km (0.091 R)
• M17: 28,296,736 km (0.089 R)
• M18: 30,850,522 km (0.095 R)
• M19: 37,552,207 km (0.038 R)
• M20: 37,898,975 km (0.097 R)
• M21: 39,546,048 km (0.107 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 592.5

Radius: 4.6

Gravity: 28 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 9.39 AU - 11.03 AU

Year: 21755 Days

Day: 19.3 Hours

Environment

Temp: -227 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 76,679,311 km

• M1: 58,044 km (0.077 R)
• M2: 225,594 km (0.032 R)
• M3: 503,995 km (0.111 R)
• M4: 808,128 km (0.102 R)
• M5: 965,355 km (0.084 R)
• M6: 1,357,900 km (0.117 R)
• M7: 2,004,312 km (0.118 R)
• M8: 4,130,248 km (0.085 R)
• M9: 4,743,599 km (0.12 R)
• M10: 7,515,348 km (0.084 R)
• M11: 7,961,748 km (0.059 R)
• M12: 11,724,733 km (0.091 R)
• M13: 14,776,380 km (0.064 R)
• M14: 15,634,324 km (0.071 R)
• M15: 16,442,601 km (0.117 R)
• M16: 16,607,608 km (0.101 R)
• M17: 18,495,682 km (0.103 R)
• M18: 22,590,176 km (0.118 R)
• M19: 25,779,453 km (0.091 R)
• M20: 29,620,229 km (0.114 R)
• M21: 30,110,162 km (0.07 R)
• M22: 32,641,507 km (0.052 R)
• M23: 38,411,647 km (0.037 R)
• M24: 51,212,288 km (0.034 R)
• M25: 52,629,877 km (0.046 R)
• M26: 65,130,724 km (0.086 R)
• M27: 71,952,836 km (0.114 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 394 - 14,050 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit