🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 59.8

Radius: 10.2

Gravity: 0.57 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.53 AU - 0.55 AU

Year: 265 Days

Day: 11.7 Hours

Environment

Temp: -154 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 57,601,646 km

• M1: 127,009 km (0.103 R)
• M2: 538,552 km (0.062 R)
• M3: 861,085 km (0.053 R)
• M4: 1,339,499 km (0.078 R)
• M5: 1,699,881 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 616.8

Radius: 13.8

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.62 AU - 0.8 AU

Year: 399 Days

Day: 8.7 Hours

Environment

Temp: -168 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 57,601,646 km

• M1: 171,589 km (0.103 R)
• M2: 614,249 km (0.051 R)
• M3: 1,110,315 km (0.046 R)
• M4: 1,595,461 km (0.079 R)
• M5: 2,693,210 km (0.103 R)
• M6: 3,396,470 km (0.102 R)
• M7: 3,922,905 km (0.091 R)
• M8: 4,559,444 km (0.116 R)
• M9: 5,202,715 km (0.034 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 318.8

Radius: 14.2

Gravity: 1.58 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.68 AU - 0.74 AU

Year: 399 Days

Day: 8 Hours

Environment

Temp: -153 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 57,601,646 km

• M1: 176,825 km (0.084 R)
• M2: 642,523 km (0.111 R)
• M3: 1,111,662 km (0.109 R)
• M4: 1,876,256 km (0.103 R)
• M5: 2,404,038 km (0.107 R)
• M6: 3,129,288 km (0.119 R)
• M7: 3,834,493 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 721.8

Radius: 8.2

Gravity: 10.73 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 0.85 AU - 1.07 AU

Year: 627 Days

Day: 8.7 Hours

Environment

Temp: -179 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 57,601,646 km

• M1: 102,026 km (0.055 R)
• M2: 387,608 km (0.036 R)
• M3: 718,818 km (0.099 R)
• M4: 1,298,360 km (0.07 R)
• M5: 1,599,800 km (0.094 R)
• M6: 3,009,460 km (0.104 R)
• M7: 3,477,103 km (0.069 R)
• M8: 3,805,620 km (0.054 R)
• M9: 4,383,966 km (0.103 R)
• M10: 4,686,303 km (0.103 R)
• M11: 5,244,752 km (0.087 R)
• M12: 5,696,687 km (0.066 R)
• M13: 6,154,606 km (0.113 R)
• M14: 7,429,928 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 388.2

Radius: 8.8

Gravity: 5.01 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 1.81 AU - 2.87 AU

Year: 2387 Days

Day: 11.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 57,601,646 km

• M1: 109,954 km (0.072 R)
• M2: 547,977 km (0.1 R)
• M3: 1,161,478 km (0.12 R)
• M4: 2,003,714 km (0.106 R)
• M5: 2,603,302 km (0.095 R)
• M6: 4,874,347 km (0.117 R)
• M7: 6,477,139 km (0.071 R)
• M8: 8,073,797 km (0.114 R)
• M9: 9,027,334 km (0.077 R)
• M10: 9,883,483 km (0.063 R)
• M11: 10,578,065 km (0.071 R)
• M12: 12,656,129 km (0.1 R)
• M13: 14,769,050 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 429.4

Radius: 9.6

Gravity: 4.66 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 2.78 AU - 4.46 AU

Year: 4593 Days

Day: 11 Hours

Environment

Temp: -215 °C

Axial Tilt: 48.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 57,601,646 km

• M1: 119,379 km (0.096 R)
• M2: 438,771 km (0.107 R)
• M3: 1,008,738 km (0.108 R)
• M4: 1,452,895 km (0.064 R)
• M5: 1,894,208 km (0.112 R)
• M6: 2,773,395 km (0.079 R)
• M7: 3,305,215 km (0.103 R)
• M8: 4,251,272 km (0.047 R)
• M9: 4,934,785 km (0.097 R)
• M10: 6,052,281 km (0.04 R)
• M11: 6,549,694 km (0.117 R)
• M12: 7,137,614 km (0.1 R)
• M13: 7,659,710 km (0.093 R)
• M14: 8,707,194 km (0.072 R)
• M15: 10,702,980 km (0.11 R)
• M16: 11,474,905 km (0.074 R)
• M17: 11,829,751 km (0.048 R)
• M18: 12,237,704 km (0.108 R)
• M19: 18,191,550 km (0.092 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 305

Radius: 7.3

Gravity: 5.72 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 7.84 AU - 11.3 AU

Year: 19742 Days

Day: 17.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 57,601,646 km

• M1: 91,554 km (0.104 R)
• M2: 326,423 km (0.093 R)
• M3: 579,093 km (0.079 R)
• M4: 1,033,272 km (0.119 R)
• M5: 1,299,856 km (0.079 R)
• M6: 1,643,632 km (0.036 R)
• M7: 1,905,578 km (0.083 R)
• M8: 2,138,801 km (0.08 R)
• M9: 3,662,156 km (0.034 R)
• M10: 4,112,745 km (0.067 R)
• M11: 5,023,197 km (0.036 R)
• M12: 5,985,860 km (0.088 R)
• M13: 6,450,959 km (0.107 R)
• M14: 6,733,400 km (0.066 R)
• M15: 7,946,190 km (0.09 R)
• M16: 8,508,229 km (0.101 R)
• M17: 9,816,612 km (0.044 R)
• M18: 11,486,873 km (0.056 R)
• M19: 12,144,206 km (0.112 R)
• M20: 15,166,980 km (0.072 R)
• M21: 16,624,961 km (0.096 R)
• M22: 18,094,311 km (0.105 R)
• M23: 21,024,485 km (0.091 R)
• M24: 26,040,651 km (0.118 R)
• M25: 27,593,178 km (0.04 R)
• M26: 35,037,018 km (0.043 R)
• M27: 40,634,222 km (0.053 R)
• M28: 42,156,082 km (0.088 R)
• M29: 44,147,678 km (0.069 R)
• M30: 49,088,447 km (0.108 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 339 - 13,262 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit