🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.66 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 202.8

Radius: 10.5

Gravity: 1.84 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 1.1 AU - 1.52 AU

Year: 953 Days

Day: 10.3 Hours

Environment

Temp: -165 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 34,832,244 km

• M1: 130,599 km (0.109 R)
• M2: 539,600 km (0.057 R)
• M3: 1,013,077 km (0.051 R)
• M4: 1,486,704 km (0.11 R)
• M5: 2,259,227 km (0.086 R)
• M6: 3,540,234 km (0.088 R)
• M7: 3,922,157 km (0.11 R)
• M8: 4,259,051 km (0.102 R)
• M9: 5,805,744 km (0.089 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 401

Radius: 9.8

Gravity: 4.18 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 1.36 AU - 1.82 AU

Year: 1275 Days

Day: 12.3 Hours

Environment

Temp: -183 °C

Axial Tilt: 48.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 34,832,244 km

• M1: 123,568 km (0.092 R)
• M2: 460,013 km (0.112 R)
• M3: 886,816 km (0.041 R)
• M4: 1,204,113 km (0.116 R)
• M5: 1,675,795 km (0.067 R)
• M6: 2,130,722 km (0.084 R)
• M7: 3,304,916 km (0.092 R)
• M8: 3,945,793 km (0.108 R)
• M9: 4,526,832 km (0.103 R)
• M10: 5,050,424 km (0.116 R)
• M11: 5,674,846 km (0.118 R)
• M12: 6,437,795 km (0.109 R)
• M13: 7,077,326 km (0.086 R)
• M14: 7,683,496 km (0.097 R)
• M15: 8,509,725 km (0.051 R)
• M16: 8,834,353 km (0.044 R)
• M17: 9,336,852 km (0.11 R)
• M18: 9,917,441 km (0.057 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 896.2

Radius: 12.7

Gravity: 5.56 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 1.48 AU - 1.78 AU

Year: 1323 Days

Day: 11.1 Hours

Environment

Temp: -188 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 34,832,244 km

• M1: 157,975 km (0.107 R)
• M2: 715,227 km (0.061 R)
• M3: 1,265,448 km (0.053 R)
• M4: 1,760,318 km (0.075 R)
• M5: 2,183,830 km (0.085 R)
• M6: 2,851,635 km (0.104 R)
• M7: 3,586,759 km (0.097 R)
• M8: 4,444,852 km (0.116 R)
• M9: 4,912,794 km (0.086 R)
• M10: 5,811,578 km (0.103 R)
• M11: 6,421,040 km (0.069 R)
• M12: 6,816,876 km (0.039 R)
• M13: 7,879,170 km (0.12 R)
• M14: 9,868,822 km (0.102 R)
• M15: 10,330,631 km (0.079 R)
• M16: 11,368,989 km (0.069 R)
• M17: 11,987,726 km (0.069 R)
• M18: 13,094,900 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 327.6

Radius: 15

Gravity: 1.46 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 1.87 AU - 2.49 AU

Year: 2047 Days

Day: 9.9 Hours

Environment

Temp: -200 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 34,832,244 km

• M1: 187,446 km (0.052 R)
• M2: 656,136 km (0.108 R)
• M3: 1,185,563 km (0.053 R)
• M4: 1,686,866 km (0.109 R)
• M5: 2,451,909 km (0.088 R)
• M6: 3,084,708 km (0.092 R)
• M7: 3,808,762 km (0.094 R)
• M8: 4,420,019 km (0.084 R)
• M9: 5,239,815 km (0.1 R)
• M10: 6,044,352 km (0.075 R)
• M11: 7,549,756 km (0.065 R)
• M12: 8,347,860 km (0.043 R)
• M13: 9,823,793 km (0.043 R)
• M14: 10,877,860 km (0.11 R)
• M15: 11,969,625 km (0.084 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 223.9

Radius: 6.3

Gravity: 5.64 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 5.91 AU - 7.09 AU

Year: 10537 Days

Day: 24.7 Hours

Environment

Temp: -217 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 34,832,244 km

• M1: 114,592 km (0.116 R)
• M2: 316,100 km (0.055 R)
• M3: 664,215 km (0.098 R)
• M4: 1,604,437 km (0.119 R)
• M5: 1,994,738 km (0.044 R)
• M6: 2,623,647 km (0.041 R)
• M7: 2,847,595 km (0.097 R)
• M8: 5,360,541 km (0.047 R)
• M9: 14,700,384 km (0.107 R)
• M10: 14,993,147 km (0.103 R)
• M11: 18,885,983 km (0.117 R)
• M12: 20,513,458 km (0.071 R)
• M13: 28,139,958 km (0.1 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 81.1

Radius: 7.6

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 7.53 AU - 11.05 AU

Year: 18003 Days

Day: 17.7 Hours

Environment

Temp: -233 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 34,832,244 km

• M1: 97,239 km (0.1 R)
• M2: 372,349 km (0.061 R)
• M3: 1,756,129 km (0.12 R)
• M4: 2,107,984 km (0.088 R)
• M5: 2,506,213 km (0.043 R)
• M6: 4,333,402 km (0.11 R)
• M7: 4,702,459 km (0.077 R)
• M8: 6,732,951 km (0.05 R)
• M9: 7,711,022 km (0.086 R)
• M10: 8,821,936 km (0.073 R)
• M11: 9,158,232 km (0.033 R)
• M12: 10,264,209 km (0.112 R)
• M13: 10,636,109 km (0.045 R)
• M14: 11,655,619 km (0.058 R)
• M15: 16,452,923 km (0.104 R)
• M16: 18,761,518 km (0.091 R)
• M17: 21,578,745 km (0.11 R)
• M18: 33,393,536 km (0.113 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 367 - 11,492 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit