🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 320.4

Radius: 10.3

Gravity: 3.02 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.62 AU - 0.94 AU

Year: 445 Days

Day: 12.6 Hours

Environment

Temp: -139 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 23,811,013 km

• M1: 128,056 km (0.083 R)
• M2: 602,730 km (0.106 R)
• M3: 1,051,673 km (0.117 R)
• M4: 2,044,554 km (0.025 R)
• M5: 2,489,159 km (0.118 R)
• M6: 2,849,690 km (0.1 R)
• M7: 3,341,418 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 170.8

Radius: 10.4

Gravity: 1.58 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.7 AU - 0.88 AU

Year: 453 Days

Day: 5.8 Hours

Environment

Temp: -153 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 23,811,013 km

• M1: 129,402 km (0.05 R)
• M2: 460,462 km (0.059 R)
• M3: 823,087 km (0.09 R)
• M4: 1,315,564 km (0.11 R)
• M5: 1,737,280 km (0.058 R)
• M6: 2,248,755 km (0.104 R)
• M7: 2,716,099 km (0.116 R)
• M8: 3,178,656 km (0.099 R)
• M9: 3,714,964 km (0.066 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 232.3

Radius: 11.1

Gravity: 1.89 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.76 AU - 0.94 AU

Year: 506 Days

Day: 7.8 Hours

Environment

Temp: -159 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 23,811,013 km

• M1: 138,079 km (0.028 R)
• M2: 539,450 km (0.108 R)
• M3: 1,003,353 km (0.107 R)
• M4: 1,465,910 km (0.092 R)
• M5: 2,001,470 km (0.109 R)
• M6: 2,949,023 km (0.073 R)
• M7: 3,868,751 km (0.089 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 355

Radius: 8.7

Gravity: 4.69 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 1.05 AU - 1.49 AU

Year: 924 Days

Day: 7.8 Hours

Environment

Temp: -169 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 23,811,013 km

• M1: 108,159 km (0.056 R)
• M2: 544,237 km (0.115 R)
• M3: 893,548 km (0.094 R)
• M4: 1,180,776 km (0.04 R)
• M5: 1,471,295 km (0.102 R)
• M6: 2,495,292 km (0.076 R)
• M7: 3,408,887 km (0.101 R)
• M8: 3,693,123 km (0.067 R)
• M9: 4,356,440 km (0.025 R)
• M10: 4,976,373 km (0.034 R)
• M11: 5,543,050 km (0.074 R)
• M12: 6,073,524 km (0.107 R)
• M13: 6,575,425 km (0.11 R)
• M14: 7,083,010 km (0.109 R)
• M15: 7,684,992 km (0.087 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 83.3

Radius: 11

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 1.71 AU - 2.29 AU

Year: 1826 Days

Day: 13.9 Hours

Environment

Temp: -197 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 23,811,013 km

• M1: 145,708 km (0.071 R)
• M2: 523,293 km (0.069 R)
• M3: 931,247 km (0.08 R)
• M4: 1,378,993 km (0.1 R)
• M5: 2,711,761 km (0.107 R)
• M6: 4,523,092 km (0.038 R)
• M7: 5,063,290 km (0.092 R)
• M8: 5,719,725 km (0.099 R)
• M9: 6,117,057 km (0.094 R)
• M10: 6,925,185 km (0.11 R)
• M11: 7,576,683 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 104.2

Radius: 11.6

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 2.79 AU - 2.85 AU

Year: 3058 Days

Day: 13.2 Hours

Environment

Temp: -207 °C

Axial Tilt: 44.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 23,811,013 km

• M1: 146,008 km (0.067 R)
• M2: 631,752 km (0.101 R)
• M3: 1,775,577 km (0.07 R)
• M4: 2,201,931 km (0.109 R)
• M5: 3,193,316 km (0.057 R)
• M6: 4,011,018 km (0.101 R)
• M7: 6,016,378 km (0.092 R)
• M8: 8,815,503 km (0.115 R)
• M9: 10,839,862 km (0.08 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 42.6

Radius: 3

Gravity: 4.73 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 7.53 AU - 9.87 AU

Year: 16569 Days

Day: 21.3 Hours

Environment

Temp: -238 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 23,811,013 km

• M1: 102,624 km (0.106 R)
• M2: 347,965 km (0.104 R)
• M3: 1,317,957 km (0.107 R)
• M4: 1,698,833 km (0.077 R)
• M5: 3,518,392 km (0.107 R)
• M6: 4,750,780 km (0.111 R)
• M7: 5,006,891 km (0.116 R)
• M8: 6,304,802 km (0.078 R)
• M9: 7,030,950 km (0.08 R)
• M10: 7,987,928 km (0.1 R)
• M11: 14,306,493 km (0.068 R)
• M12: 15,663,645 km (0.083 R)
• M13: 17,887,268 km (0.083 R)
• M14: 18,568,237 km (0.092 R)
• M15: 21,396,086 km (0.092 R)
• M16: 24,724,788 km (0.085 R)
• M17: 25,568,819 km (0.072 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 17.3

Radius: 8

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 8.53 AU - 12.51 AU

Year: 22031 Days

Day: 24.9 Hours

Environment

Temp: -241 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 23,811,013 km

• M1: 100,081 km (0.115 R)
• M2: 497,263 km (0.113 R)
• M3: 759,060 km (0.06 R)
• M4: 1,473,838 km (0.057 R)
• M5: 1,757,775 km (0.099 R)
• M6: 2,640,702 km (0.088 R)
• M7: 3,414,272 km (0.071 R)
• M8: 4,725,946 km (0.053 R)
• M9: 6,611,328 km (0.06 R)
• M10: 7,754,256 km (0.071 R)
• M11: 9,591,617 km (0.119 R)
• M12: 13,269,182 km (0.058 R)
• M13: 17,155,734 km (0.099 R)
• M14: 19,172,014 km (0.104 R)
• M15: 20,173,422 km (0.049 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 290 - 19,000 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit