🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 432.2

Radius: 14.8

Gravity: 1.97 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.55 AU - 0.85 AU

Year: 378 Days

Day: 11.4 Hours

Environment

Temp: -133 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 73,273,507 km

• M1: 184,005 km (0.047 R)
• M2: 777,460 km (0.054 R)
• M3: 1,360,892 km (0.104 R)
• M4: 1,865,037 km (0.103 R)
• M5: 2,376,961 km (0.114 R)
• M6: 2,839,068 km (0.092 R)
• M7: 3,469,773 km (0.097 R)
• M8: 4,447,545 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 258.3

Radius: 13.1

Gravity: 1.51 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.55 AU - 0.85 AU

Year: 378 Days

Day: 9.6 Hours

Environment

Temp: -129 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 73,273,507 km

• M1: 162,912 km (0.049 R)
• M2: 647,310 km (0.068 R)
• M3: 1,778,270 km (0.037 R)
• M4: 2,201,632 km (0.077 R)
• M5: 3,036,238 km (0.054 R)
• M6: 3,735,608 km (0.056 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 844.5

Radius: 13.3

Gravity: 4.77 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 2.69 AU - 4.11 AU

Year: 4048 Days

Day: 14.7 Hours

Environment

Temp: -203 °C

Axial Tilt: 106.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 73,273,507 km

• M1: 169,046 km (0.101 R)
• M2: 875,896 km (0.118 R)
• M3: 1,353,861 km (0.081 R)
• M4: 2,050,388 km (0.072 R)
• M5: 2,530,897 km (0.11 R)
• M6: 3,475,009 km (0.092 R)
• M7: 4,029,119 km (0.106 R)
• M8: 7,986,432 km (0.093 R)
• M9: 8,995,619 km (0.083 R)
• M10: 9,714,437 km (0.094 R)
• M11: 11,086,848 km (0.055 R)
• M12: 16,560,185 km (0.109 R)
• M13: 18,513,484 km (0.062 R)
• M14: 20,009,164 km (0.078 R)
• M15: 25,212,776 km (0.067 R)
• M16: 26,159,880 km (0.067 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 220.3

Radius: 13

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 3.15 AU - 3.69 AU

Year: 4084 Days

Day: 13.3 Hours

Environment

Temp: -202 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 73,273,507 km

• M1: 162,463 km (0.069 R)
• M2: 603,179 km (0.096 R)
• M3: 1,076,506 km (0.073 R)
• M4: 2,155,257 km (0.098 R)
• M5: 3,444,491 km (0.085 R)
• M6: 4,070,109 km (0.064 R)
• M7: 6,253,939 km (0.115 R)
• M8: 7,102,159 km (0.087 R)
• M9: 9,788,488 km (0.081 R)
• M10: 12,411,687 km (0.111 R)
• M11: 12,833,553 km (0.119 R)
• M12: 14,157,194 km (0.12 R)
• M13: 15,184,184 km (0.1 R)
• M14: 16,817,194 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 223.1

Radius: 9.9

Gravity: 2.28 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 4.04 AU - 4.22 AU

Year: 5419 Days

Day: 7.7 Hours

Environment

Temp: -210 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 73,273,507 km

• M1: 123,119 km (0.082 R)
• M2: 463,753 km (0.033 R)
• M3: 1,065,735 km (0.108 R)
• M4: 1,571,226 km (0.082 R)
• M5: 2,579,217 km (0.072 R)
• M6: 2,897,262 km (0.113 R)
• M7: 3,536,494 km (0.067 R)
• M8: 4,181,260 km (0.068 R)
• M9: 5,218,273 km (0.097 R)
• M10: 6,164,779 km (0.101 R)
• M11: 6,591,432 km (0.087 R)
• M12: 7,160,203 km (0.044 R)
• M13: 7,728,824 km (0.089 R)
• M14: 8,157,871 km (0.067 R)
• M15: 9,920,284 km (0.115 R)
• M16: 11,409,680 km (0.059 R)
• M17: 15,490,112 km (0.12 R)
• M18: 16,767,079 km (0.086 R)
• M19: 17,319,394 km (0.097 R)
• M20: 21,337,892 km (0.091 R)

Planet 6 - Ice Giant

Semi-Major Axis: 11.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 418.9

Radius: 3.7

Gravity: 30.6 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 10.36 AU - 12.02 AU

Year: 24169 Days

Day: 18.3 Hours

Environment

Temp: -238 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 73,273,507 km

• M1: 63,429 km (0.115 R)
• M2: 189,092 km (0.085 R)
• M3: 1,705,715 km (0.111 R)
• M4: 2,513,693 km (0.105 R)
• M5: 2,873,625 km (0.108 R)
• M6: 4,095,990 km (0.053 R)
• M7: 5,242,059 km (0.081 R)
• M8: 5,667,366 km (0.092 R)
• M9: 6,542,513 km (0.07 R)
• M10: 12,229,177 km (0.105 R)
• M11: 13,323,785 km (0.097 R)
• M12: 15,393,322 km (0.102 R)
• M13: 15,705,532 km (0.109 R)
• M14: 20,529,615 km (0.098 R)
• M15: 21,483,750 km (0.119 R)
• M16: 23,789,502 km (0.073 R)
• M17: 30,815,516 km (0.101 R)
• M18: 34,662,724 km (0.12 R)
• M19: 40,569,147 km (0.082 R)
• M20: 49,271,106 km (0.094 R)
• M21: 52,720,234 km (0.109 R)
• M22: 53,607,051 km (0.076 R)
• M23: 58,567,866 km (0.036 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 433 - 18,322 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit