🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 182.2

Radius: 14.5

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.55 AU - 0.71 AU

Year: 339 Days

Day: 11.7 Hours

Environment

Temp: -152 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 26,245,964 km

• M1: 180,265 km (0.113 R)
• M2: 655,239 km (0.119 R)
• M3: 1,173,446 km (0.034 R)
• M4: 1,855,612 km (0.119 R)
• M5: 2,486,017 km (0.085 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 643.3

Radius: 14.6

Gravity: 3.02 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 0.61 AU - 0.77 AU

Year: 389 Days

Day: 12.6 Hours

Environment

Temp: -163 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 26,245,964 km

• M1: 181,761 km (0.097 R)
• M2: 704,905 km (0.069 R)
• M3: 1,228,947 km (0.097 R)
• M4: 1,839,904 km (0.098 R)
• M5: 2,651,622 km (0.054 R)
• M6: 3,146,941 km (0.111 R)
• M7: 4,422,562 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 406.2

Radius: 12.8

Gravity: 2.48 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 0.88 AU - 0.96 AU

Year: 599 Days

Day: 14.5 Hours

Environment

Temp: -163 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 26,245,964 km

• M1: 159,172 km (0.118 R)
• M2: 591,360 km (0.092 R)
• M3: 1,093,860 km (0.118 R)
• M4: 1,815,221 km (0.084 R)
• M5: 2,316,673 km (0.113 R)
• M6: 2,964,132 km (0.051 R)
• M7: 3,529,612 km (0.054 R)
• M8: 4,419,271 km (0.061 R)
• M9: 5,160,678 km (0.052 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 439.3

Radius: 10.7

Gravity: 3.84 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.9 AU - 1.32 AU

Year: 793 Days

Day: 12.9 Hours

Environment

Temp: -185 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 26,245,964 km

• M1: 133,890 km (0.064 R)
• M2: 522,097 km (0.059 R)
• M3: 916,437 km (0.054 R)
• M4: 1,249,292 km (0.11 R)
• M5: 2,182,633 km (0.11 R)
• M6: 3,025,916 km (0.117 R)
• M7: 3,636,724 km (0.048 R)
• M8: 4,059,039 km (0.07 R)
• M9: 4,902,023 km (0.097 R)
• M10: 5,312,669 km (0.105 R)
• M11: 5,971,498 km (0.118 R)
• M12: 6,460,534 km (0.058 R)

Asteroid Belt

Center: 1.38 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 222.4

Radius: 11.4

Gravity: 1.71 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 1.61 AU - 1.69 AU

Year: 1438 Days

Day: 10.8 Hours

Environment

Temp: -199 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 26,245,964 km

• M1: 145,858 km (0.107 R)
• M2: 500,854 km (0.067 R)
• M3: 899,831 km (0.096 R)
• M4: 1,329,177 km (0.073 R)
• M5: 1,729,800 km (0.107 R)
• M6: 2,574,280 km (0.11 R)
• M7: 3,167,885 km (0.089 R)
• M8: 3,895,977 km (0.109 R)
• M9: 4,613,000 km (0.092 R)
• M10: 5,048,180 km (0.109 R)
• M11: 5,606,779 km (0.106 R)
• M12: 6,672,364 km (0.043 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 841.9

Radius: 9.1

Gravity: 10.17 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.79 AU - 2.03 AU

Year: 1790 Days

Day: 5.1 Hours

Environment

Temp: -199 °C

Axial Tilt: 49.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 26,245,964 km

• M1: 113,246 km (0.12 R)
• M2: 432,039 km (0.092 R)
• M3: 856,298 km (0.115 R)
• M4: 1,197,082 km (0.053 R)
• M5: 1,960,929 km (0.088 R)
• M6: 2,351,379 km (0.118 R)
• M7: 2,957,550 km (0.088 R)
• M8: 3,917,519 km (0.056 R)
• M9: 4,240,800 km (0.113 R)
• M10: 4,748,536 km (0.098 R)
• M11: 6,033,432 km (0.082 R)
• M12: 6,891,675 km (0.053 R)
• M13: 7,195,059 km (0.117 R)
• M14: 7,507,569 km (0.096 R)
• M15: 8,220,702 km (0.077 R)
• M16: 8,913,490 km (0.072 R)
• M17: 9,850,870 km (0.046 R)
• M18: 11,724,883 km (0.087 R)
• M19: 12,118,475 km (0.075 R)
• M20: 13,225,349 km (0.117 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 771.3

Radius: 10.9

Gravity: 6.49 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 2.85 AU - 3.89 AU

Year: 4196 Days

Day: 6 Hours

Environment

Temp: -220 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 26,245,964 km

• M1: 145,559 km (0.102 R)
• M2: 772,673 km (0.114 R)
• M3: 1,602,343 km (0.114 R)
• M4: 2,225,717 km (0.116 R)
• M5: 2,603,153 km (0.111 R)
• M6: 3,570,752 km (0.054 R)
• M7: 4,515,163 km (0.076 R)
• M8: 5,072,565 km (0.105 R)
• M9: 5,790,036 km (0.087 R)
• M10: 6,700,339 km (0.06 R)
• M11: 7,598,973 km (0.096 R)
• M12: 8,314,949 km (0.114 R)
• M13: 8,881,027 km (0.092 R)
• M14: 9,392,203 km (0.065 R)
• M15: 10,516,880 km (0.097 R)
• M16: 13,385,419 km (0.073 R)
• M17: 14,163,627 km (0.086 R)
• M18: 15,810,251 km (0.099 R)
• M19: 17,036,355 km (0.059 R)
• M20: 19,284,213 km (0.06 R)
• M21: 20,344,114 km (0.111 R)
• M22: 20,888,500 km (0.104 R)
• M23: 21,303,036 km (0.093 R)
• M24: 22,220,221 km (0.119 R)
• M25: 23,831,988 km (0.087 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 781.6

Radius: 8.3

Gravity: 11.35 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 3.36 AU - 4.28 AU

Year: 5064 Days

Day: 5.2 Hours

Environment

Temp: -227 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 26,245,964 km

• M1: 103,223 km (0.101 R)
• M2: 380,427 km (0.07 R)
• M3: 951,143 km (0.061 R)
• M4: 1,633,010 km (0.088 R)
• M5: 1,941,631 km (0.098 R)
• M6: 2,419,746 km (0.11 R)
• M7: 3,130,485 km (0.083 R)
• M8: 3,857,680 km (0.093 R)
• M9: 4,163,907 km (0.104 R)
• M10: 4,461,009 km (0.061 R)
• M11: 5,763,408 km (0.096 R)
• M12: 6,259,923 km (0.055 R)
• M13: 6,852,181 km (0.051 R)
• M14: 7,481,240 km (0.032 R)
• M15: 7,847,007 km (0.105 R)
• M16: 9,473,136 km (0.107 R)
• M17: 11,029,253 km (0.105 R)
• M18: 11,455,607 km (0.077 R)
• M19: 12,341,076 km (0.093 R)
• M20: 12,852,402 km (0.066 R)
• M21: 13,591,715 km (0.07 R)
• M22: 15,329,593 km (0.11 R)
• M23: 20,207,531 km (0.109 R)
• M24: 22,388,369 km (0.037 R)
• M25: 22,690,556 km (0.069 R)
• M26: 22,995,437 km (0.077 R)
• M27: 26,448,006 km (0.103 R)
• M28: 27,556,227 km (0.094 R)
• M29: 28,606,404 km (0.114 R)
• M30: 29,321,183 km (0.076 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 20.7

Radius: 6.6

Gravity: 0.48 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 10.46 AU - 10.68 AU

Year: 23308 Days

Day: 18.2 Hours

Environment

Temp: -233 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 26,245,964 km

• M1: 2,048,294 km (0.048 R)
• M2: 2,781,174 km (0.096 R)
• M3: 3,739,797 km (0.059 R)
• M4: 4,506,785 km (0.11 R)
• M5: 4,876,591 km (0.081 R)
• M6: 6,347,886 km (0.039 R)
• M7: 8,236,410 km (0.074 R)
• M8: 11,386,941 km (0.051 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 335 - 12,101 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit