🌌 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: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 775.9

Radius: 14.3

Gravity: 3.79 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 0.52 AU - 0.68 AU

Year: 315 Days

Day: 14.3 Hours

Environment

Temp: -160 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 48,410,360 km

• M1: 177,872 km (0.094 R)
• M2: 719,566 km (0.113 R)
• M3: 1,426,416 km (0.036 R)
• M4: 2,017,776 km (0.115 R)
• M5: 3,729,924 km (0.079 R)
• M6: 4,248,430 km (0.084 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 277.9

Radius: 15

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 1.65 AU - 1.95 AU

Year: 1638 Days

Day: 6.5 Hours

Environment

Temp: -205 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 48,410,360 km

• M1: 186,549 km (0.084 R)
• M2: 657,333 km (0.117 R)
• M3: 1,131,259 km (0.093 R)
• M4: 2,308,146 km (0.12 R)
• M5: 3,339,473 km (0.072 R)
• M6: 4,033,308 km (0.12 R)
• M7: 4,501,849 km (0.064 R)
• M8: 4,969,492 km (0.092 R)
• M9: 6,550,442 km (0.025 R)
• M10: 7,035,139 km (0.101 R)
• M11: 7,568,455 km (0.096 R)
• M12: 8,473,074 km (0.104 R)
• M13: 9,304,838 km (0.105 R)
• M14: 9,859,397 km (0.102 R)
• M15: 10,560,114 km (0.076 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 472.1

Radius: 14.2

Gravity: 2.34 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 3.02 AU - 4.5 AU

Year: 4945 Days

Day: 11.3 Hours

Environment

Temp: -226 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 48,410,360 km

• M1: 176,525 km (0.11 R)
• M2: 1,096,253 km (0.108 R)
• M3: 1,689,110 km (0.061 R)
• M4: 2,311,736 km (0.062 R)
• M5: 3,503,732 km (0.101 R)
• M6: 4,069,960 km (0.08 R)
• M7: 4,528,477 km (0.096 R)
• M8: 5,334,660 km (0.079 R)
• M9: 6,029,542 km (0.085 R)
• M10: 9,749,742 km (0.054 R)
• M11: 11,405,641 km (0.057 R)
• M12: 12,090,201 km (0.062 R)
• M13: 14,998,234 km (0.102 R)
• M14: 16,101,219 km (0.07 R)
• M15: 16,614,788 km (0.037 R)
• M16: 18,160,583 km (0.08 R)
• M17: 18,905,431 km (0.061 R)
• M18: 19,477,493 km (0.116 R)
• M19: 23,445,277 km (0.072 R)
• M20: 25,928,153 km (0.08 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 594

Radius: 10.5

Gravity: 5.39 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 4.42 AU - 5.24 AU

Year: 7200 Days

Day: 10.2 Hours

Environment

Temp: -232 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 48,410,360 km

• M1: 133,890 km (0.082 R)
• M2: 737,218 km (0.086 R)
• M3: 1,568,534 km (0.078 R)
• M4: 2,543,164 km (0.102 R)
• M5: 3,080,220 km (0.111 R)
• M6: 3,809,211 km (0.101 R)
• M7: 4,814,658 km (0.083 R)
• M8: 5,274,971 km (0.111 R)
• M9: 10,987,365 km (0.096 R)
• M10: 19,791,200 km (0.1 R)
• M11: 23,974,854 km (0.086 R)
• M12: 25,491,028 km (0.046 R)
• M13: 34,250,582 km (0.056 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 548.2

Radius: 7.6

Gravity: 9.49 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 7.93 AU - 8.45 AU

Year: 15897 Days

Day: 15.9 Hours

Environment

Temp: -231 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 48,410,360 km

• M1: 94,695 km (0.112 R)
• M2: 453,431 km (0.079 R)
• M3: 1,017,714 km (0.118 R)
• M4: 1,367,025 km (0.083 R)
• M5: 3,311,798 km (0.042 R)
• M6: 3,712,271 km (0.049 R)
• M7: 5,076,305 km (0.108 R)
• M8: 15,591,240 km (0.118 R)
• M9: 15,885,798 km (0.082 R)
• M10: 17,024,238 km (0.114 R)
• M11: 20,764,932 km (0.042 R)
• M12: 26,141,480 km (0.118 R)
• M13: 30,966,011 km (0.098 R)
• M14: 35,329,632 km (0.103 R)
• M15: 38,322,187 km (0.096 R)
• M16: 38,994,480 km (0.098 R)
• M17: 42,761,055 km (0.077 R)
• M18: 46,306,525 km (0.113 R)
• M19: 53,976,258 km (0.072 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 184.1

Radius: 6.1

Gravity: 4.95 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 9.27 AU - 9.55 AU

Year: 19578 Days

Day: 18.2 Hours

Environment

Temp: -233 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 48,410,360 km

• M1: 75,996 km (0.112 R)
• M2: 273,764 km (0.117 R)
• M3: 529,876 km (0.1 R)
• M4: 760,855 km (0.111 R)
• M5: 995,873 km (0.082 R)
• M6: 1,266,944 km (0.115 R)
• M7: 2,645,190 km (0.095 R)
• M8: 4,109,603 km (0.091 R)
• M9: 5,094,107 km (0.097 R)
• M10: 5,421,277 km (0.098 R)
• M11: 6,911,422 km (0.103 R)
• M12: 7,110,088 km (0.112 R)
• M13: 8,980,061 km (0.117 R)
• M14: 9,312,767 km (0.065 R)
• M15: 10,002,712 km (0.099 R)
• M16: 10,885,788 km (0.111 R)
• M17: 15,543,518 km (0.071 R)
• M18: 15,885,199 km (0.028 R)
• M19: 25,009,174 km (0.078 R)
• M20: 25,478,462 km (0.07 R)
• M21: 33,239,600 km (0.078 R)
• M22: 36,981,790 km (0.116 R)
• M23: 43,645,927 km (0.025 R)
• M24: 45,846,960 km (0.046 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 356 - 19,261 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit