🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 583.8

Radius: 9.5

Gravity: 6.47 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 0.63 AU - 0.79 AU

Year: 421 Days

Day: 11.7 Hours

Environment

Temp: -153 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 60,689,068 km

• M1: 118,182 km (0.112 R)
• M2: 459,714 km (0.108 R)
• M3: 818,899 km (0.045 R)
• M4: 1,145,770 km (0.06 R)
• M5: 1,475,633 km (0.032 R)
• M6: 1,946,867 km (0.119 R)
• M7: 2,640,702 km (0.11 R)
• M8: 3,215,307 km (0.058 R)
• M9: 3,934,723 km (0.09 R)
• M10: 4,457,568 km (0.112 R)
• M11: 5,163,969 km (0.088 R)
• M12: 5,495,627 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 849

Radius: 11.9

Gravity: 6 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 1 AU - 1.1 AU

Year: 756 Days

Day: 10.9 Hours

Environment

Temp: -169 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 60,689,068 km

• M1: 147,952 km (0.07 R)
• M2: 685,457 km (0.086 R)
• M3: 1,156,242 km (0.115 R)
• M4: 1,879,398 km (0.101 R)
• M5: 2,996,745 km (0.105 R)
• M6: 3,543,674 km (0.081 R)
• M7: 4,480,606 km (0.089 R)
• M8: 5,070,620 km (0.066 R)
• M9: 6,708,866 km (0.108 R)
• M10: 7,249,064 km (0.042 R)
• M11: 8,753,719 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 139.8

Radius: 11.2

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 1.03 AU - 1.33 AU

Year: 901 Days

Day: 14.2 Hours

Environment

Temp: -174 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 60,689,068 km

• M1: 139,425 km (0.099 R)
• M2: 699,220 km (0.075 R)
• M3: 1,054,815 km (0.098 R)
• M4: 1,470,697 km (0.109 R)
• M5: 2,069,687 km (0.094 R)
• M6: 2,426,926 km (0.103 R)
• M7: 2,877,365 km (0.089 R)
• M8: 3,489,221 km (0.091 R)
• M9: 4,336,094 km (0.11 R)
• M10: 4,837,995 km (0.116 R)
• M11: 5,235,776 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 564.5

Radius: 10

Gravity: 5.65 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 1.12 AU - 1.38 AU

Year: 982 Days

Day: 10.5 Hours

Environment

Temp: -179 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 60,689,068 km

• M1: 124,316 km (0.097 R)
• M2: 794,514 km (0.117 R)
• M3: 1,208,302 km (0.096 R)
• M4: 2,646,536 km (0.064 R)
• M5: 3,590,648 km (0.057 R)
• M6: 4,172,285 km (0.11 R)
• M7: 4,923,116 km (0.11 R)
• M8: 5,761,463 km (0.055 R)
• M9: 7,453,864 km (0.091 R)
• M10: 8,349,356 km (0.117 R)

Asteroid Belt

Center: 2.13 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 3.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 150.6

Radius: 12.6

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 2.35 AU - 3.67 AU

Year: 3671 Days

Day: 6.9 Hours

Environment

Temp: -217 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 60,689,068 km

• M1: 158,574 km (0.114 R)
• M2: 568,921 km (0.091 R)
• M3: 1,670,559 km (0.113 R)
• M4: 2,114,716 km (0.084 R)
• M5: 2,903,096 km (0.1 R)
• M6: 3,504,031 km (0.033 R)
• M7: 5,543,200 km (0.044 R)
• M8: 6,598,612 km (0.065 R)
• M9: 9,687,360 km (0.058 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 149.4

Radius: 13.2

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 3.58 AU - 5.48 AU

Year: 6777 Days

Day: 12.9 Hours

Environment

Temp: -227 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 60,689,068 km

• M1: 164,258 km (0.09 R)
• M2: 697,575 km (0.113 R)
• M3: 1,212,491 km (0.103 R)
• M4: 2,429,170 km (0.1 R)
• M5: 3,529,014 km (0.101 R)
• M6: 4,565,428 km (0.083 R)
• M7: 6,869,983 km (0.101 R)
• M8: 8,207,538 km (0.081 R)
• M9: 8,866,815 km (0.062 R)
• M10: 11,435,710 km (0.052 R)
• M11: 12,844,922 km (0.104 R)
• M12: 13,308,227 km (0.081 R)
• M13: 14,816,024 km (0.097 R)
• M14: 17,203,456 km (0.054 R)
• M15: 17,709,994 km (0.109 R)
• M16: 20,269,614 km (0.037 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 694.4

Radius: 3.7

Gravity: 50.72 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 6.14 AU - 8.66 AU

Year: 14150 Days

Day: 23.8 Hours

Environment

Temp: -240 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 60,689,068 km

• M1: 47,273 km (0.052 R)
• M2: 371,003 km (0.1 R)
• M3: 502,649 km (0.064 R)
• M4: 823,087 km (0.116 R)
• M5: 1,111,811 km (0.043 R)
• M6: 2,245,165 km (0.057 R)
• M7: 4,015,207 km (0.076 R)
• M8: 4,164,655 km (0.118 R)
• M9: 4,571,113 km (0.112 R)
• M10: 8,329,310 km (0.034 R)
• M11: 12,884,715 km (0.12 R)
• M12: 13,014,416 km (0.08 R)
• M13: 14,221,073 km (0.085 R)
• M14: 17,087,368 km (0.108 R)
• M15: 17,639,683 km (0.088 R)
• M16: 18,946,421 km (0.104 R)
• M17: 22,119,691 km (0.119 R)
• M18: 22,399,140 km (0.112 R)
• M19: 28,603,562 km (0.063 R)
• M20: 44,402,294 km (0.088 R)
• M21: 49,615,630 km (0.103 R)
• M22: 52,865,195 km (0.066 R)
• M23: 55,222,259 km (0.107 R)
• M24: 59,066,326 km (0.071 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: 517 - 10,783 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit