🌌 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: 133.7

Radius: 10.4

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.58 AU - 0.6 AU

Year: 313 Days

Day: 9.4 Hours

Environment

Temp: -156 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 40,402,271 km

• M1: 129,402 km (0.045 R)
• M2: 510,129 km (0.077 R)
• M3: 1,119,590 km (0.103 R)
• M4: 1,569,431 km (0.072 R)
• M5: 2,151,517 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 4.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 335

Radius: 12.9

Gravity: 2.01 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 3.23 AU - 5.23 AU

Year: 6005 Days

Day: 10.3 Hours

Environment

Temp: -226 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 40,402,271 km

• M1: 163,510 km (0.057 R)
• M2: 619,335 km (0.086 R)
• M3: 1,120,638 km (0.094 R)
• M4: 2,097,961 km (0.097 R)
• M5: 2,934,512 km (0.098 R)
• M6: 3,381,660 km (0.114 R)
• M7: 4,160,915 km (0.111 R)
• M8: 5,455,086 km (0.112 R)
• M9: 7,982,842 km (0.098 R)
• M10: 9,208,048 km (0.025 R)
• M11: 9,764,253 km (0.068 R)
• M12: 14,946,772 km (0.118 R)
• M13: 16,454,120 km (0.05 R)
• M14: 17,096,493 km (0.084 R)
• M15: 20,966,740 km (0.118 R)
• M16: 26,402,079 km (0.107 R)

Planet 3 - Ice Giant

Semi-Major Axis: 8.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 684.6

Radius: 4.2

Gravity: 38.81 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 6.42 AU - 10.18 AU

Year: 16505 Days

Day: 15.9 Hours

Environment

Temp: -240 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 40,402,271 km

• M1: 131,945 km (0.037 R)
• M2: 587,321 km (0.075 R)
• M3: 4,268,626 km (0.109 R)
• M4: 5,595,409 km (0.059 R)
• M5: 6,228,208 km (0.084 R)
• M6: 7,872,438 km (0.1 R)
• M7: 8,665,606 km (0.04 R)
• M8: 12,437,866 km (0.101 R)
• M9: 14,211,349 km (0.076 R)
• M10: 15,009,753 km (0.09 R)
• M11: 22,407,218 km (0.106 R)
• M12: 26,499,617 km (0.061 R)
• M13: 30,466,354 km (0.086 R)
• M14: 32,901,508 km (0.09 R)
• M15: 33,910,995 km (0.101 R)
• M16: 36,390,580 km (0.099 R)
• M17: 40,547,755 km (0.065 R)
• M18: 41,124,903 km (0.066 R)
• M19: 45,010,259 km (0.099 R)
• M20: 49,954,170 km (0.091 R)
• M21: 64,945,672 km (0.115 R)
• M22: 65,537,481 km (0.038 R)

Planet 4 - Ice Giant

Semi-Major Axis: 8.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 139.7

Radius: 4.2

Gravity: 7.92 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 7.31 AU - 9.71 AU

Year: 17136 Days

Day: 22.6 Hours

Environment

Temp: -240 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 40,402,271 km

• M1: 101,727 km (0.078 R)
• M2: 379,829 km (0.061 R)
• M3: 549,623 km (0.106 R)
• M4: 996,172 km (0.058 R)
• M5: 1,185,862 km (0.112 R)
• M6: 1,638,097 km (0.077 R)
• M7: 2,112,771 km (0.085 R)
• M8: 2,833,234 km (0.104 R)
• M9: 3,954,171 km (0.049 R)
• M10: 4,349,408 km (0.1 R)
• M11: 4,627,062 km (0.091 R)
• M12: 6,950,167 km (0.118 R)
• M13: 7,214,507 km (0.089 R)
• M14: 7,643,404 km (0.025 R)
• M15: 8,943,260 km (0.067 R)
• M16: 9,210,890 km (0.063 R)
• M17: 11,031,347 km (0.092 R)
• M18: 20,556,842 km (0.118 R)
• M19: 26,806,592 km (0.107 R)
• M20: 31,369,925 km (0.077 R)
• M21: 33,246,481 km (0.107 R)
• M22: 39,920,042 km (0.118 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 399 - 13,039 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit