🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 288.2

Radius: 14.8

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.51 AU - 0.61 AU

Year: 279 Days

Day: 8.7 Hours

Environment

Temp: -141 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 13,416,264 km

• M1: 184,005 km (0.078 R)
• M2: 882,627 km (0.103 R)
• M3: 1,379,292 km (0.092 R)
• M4: 2,184,727 km (0.04 R)
• M5: 2,930,323 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 155.2

Radius: 9.3

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.57 AU - 0.75 AU

Year: 358 Days

Day: 13.9 Hours

Environment

Temp: -157 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 13,416,264 km

• M1: 115,639 km (0.091 R)
• M2: 581,038 km (0.1 R)
• M3: 924,216 km (0.116 R)
• M4: 1,494,483 km (0.116 R)
• M5: 1,881,941 km (0.044 R)
• M6: 2,212,403 km (0.077 R)
• M7: 3,107,746 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 880.1

Radius: 9

Gravity: 10.87 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.64 AU - 0.94 AU

Year: 468 Days

Day: 5.9 Hours

Environment

Temp: -174 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 13,416,264 km

• M1: 116,088 km (0.051 R)
• M2: 519,105 km (0.093 R)
• M3: 995,125 km (0.117 R)
• M4: 1,319,154 km (0.055 R)
• M5: 1,645,427 km (0.106 R)
• M6: 2,318,019 km (0.101 R)
• M7: 2,659,551 km (0.094 R)
• M8: 3,444,491 km (0.066 R)
• M9: 5,381,185 km (0.088 R)
• M10: 6,474,446 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 311.6

Radius: 14.8

Gravity: 1.42 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 1.04 AU - 1.3 AU

Year: 844 Days

Day: 13.9 Hours

Environment

Temp: -191 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 13,416,264 km

• M1: 184,005 km (0.045 R)
• M2: 692,189 km (0.118 R)
• M3: 1,218,475 km (0.11 R)
• M4: 1,698,833 km (0.1 R)
• M5: 2,224,969 km (0.105 R)
• M6: 2,773,395 km (0.029 R)
• M7: 3,313,593 km (0.091 R)
• M8: 4,177,221 km (0.069 R)
• M9: 5,372,957 km (0.037 R)
• M10: 6,373,019 km (0.108 R)
• M11: 7,010,007 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 949

Radius: 14

Gravity: 4.84 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 1.33 AU - 1.53 AU

Year: 1140 Days

Day: 12.5 Hours

Environment

Temp: -195 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 13,416,264 km

• M1: 174,132 km (0.105 R)
• M2: 678,576 km (0.096 R)
• M3: 1,510,490 km (0.094 R)
• M4: 1,956,890 km (0.052 R)
• M5: 3,377,022 km (0.095 R)
• M6: 4,087,612 km (0.085 R)
• M7: 5,765,352 km (0.103 R)
• M8: 6,832,883 km (0.097 R)
• M9: 8,083,222 km (0.101 R)
• M10: 9,147,311 km (0.101 R)
• M11: 9,697,832 km (0.095 R)
• M12: 10,205,716 km (0.104 R)
• M13: 11,000,829 km (0.112 R)
• M14: 11,944,193 km (0.098 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 869

Radius: 13.7

Gravity: 4.63 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 1.49 AU - 1.65 AU

Year: 1312 Days

Day: 12.3 Hours

Environment

Temp: -191 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 13,416,264 km

• M1: 170,392 km (0.031 R)
• M2: 742,305 km (0.086 R)
• M3: 1,178,532 km (0.119 R)
• M4: 1,813,725 km (0.088 R)
• M5: 2,311,437 km (0.116 R)
• M6: 2,764,419 km (0.119 R)
• M7: 3,415,020 km (0.109 R)
• M8: 3,972,871 km (0.12 R)
• M9: 5,252,381 km (0.032 R)
• M10: 6,022,361 km (0.064 R)
• M11: 8,093,993 km (0.086 R)
• M12: 8,879,980 km (0.107 R)
• M13: 9,684,368 km (0.102 R)
• M14: 10,435,947 km (0.1 R)
• M15: 11,835,585 km (0.103 R)
• M16: 12,848,812 km (0.108 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 840.3

Radius: 10

Gravity: 8.4 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.35 AU - 1.83 AU

Year: 1337 Days

Day: 10.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 13,416,264 km

• M1: 124,316 km (0.11 R)
• M2: 441,912 km (0.079 R)
• M3: 814,112 km (0.095 R)
• M4: 1,225,955 km (0.064 R)
• M5: 1,566,888 km (0.083 R)
• M6: 1,971,850 km (0.079 R)
• M7: 2,299,768 km (0.109 R)
• M8: 2,896,065 km (0.085 R)
• M9: 3,231,314 km (0.12 R)
• M10: 3,576,137 km (0.08 R)
• M11: 5,337,802 km (0.11 R)
• M12: 5,936,193 km (0.112 R)
• M13: 6,777,831 km (0.119 R)
• M14: 7,319,824 km (0.082 R)
• M15: 8,172,532 km (0.108 R)
• M16: 8,608,310 km (0.101 R)
• M17: 9,369,015 km (0.084 R)
• M18: 9,878,845 km (0.113 R)
• M19: 11,884,204 km (0.073 R)
• M20: 12,368,453 km (0.117 R)
• M21: 12,943,507 km (0.116 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 537 - 12,200 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit