🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 502.1

Radius: 14.7

Gravity: 2.32 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.67 AU - 0.71 AU

Year: 370 Days

Day: 5.7 Hours

Environment

Temp: -134 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 65,337,779 km

• M1: 182,809 km (0.094 R)
• M2: 686,953 km (0.113 R)
• M3: 1,261,858 km (0.111 R)
• M4: 1,870,273 km (0.071 R)
• M5: 2,476,294 km (0.078 R)
• M6: 3,017,987 km (0.098 R)
• M7: 3,932,330 km (0.051 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 722.9

Radius: 8.3

Gravity: 10.49 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 0.8 AU - 1.02 AU

Year: 561 Days

Day: 10.3 Hours

Environment

Temp: -149 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 65,337,779 km

• M1: 103,223 km (0.089 R)
• M2: 365,617 km (0.071 R)
• M3: 636,389 km (0.119 R)
• M4: 1,105,229 km (0.096 R)
• M5: 1,609,523 km (0.118 R)
• M6: 2,624,395 km (0.064 R)
• M7: 3,051,198 km (0.082 R)
• M8: 3,536,793 km (0.117 R)
• M9: 4,029,867 km (0.076 R)
• M10: 4,414,035 km (0.039 R)
• M11: 4,694,082 km (0.106 R)
• M12: 5,085,879 km (0.062 R)
• M13: 6,855,622 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 474.4

Radius: 13.5

Gravity: 2.6 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 1.4 AU - 1.94 AU

Year: 1393 Days

Day: 7.7 Hours

Environment

Temp: -180 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 65,337,779 km

• M1: 169,494 km (0.099 R)
• M2: 645,216 km (0.026 R)
• M3: 1,304,344 km (0.072 R)
• M4: 2,150,769 km (0.097 R)
• M5: 2,805,708 km (0.083 R)
• M6: 4,830,366 km (0.034 R)
• M7: 5,726,008 km (0.087 R)
• M8: 7,665,694 km (0.115 R)
• M9: 8,941,465 km (0.05 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 603.4

Radius: 12.7

Gravity: 3.74 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 1.35 AU - 2.05 AU

Year: 1431 Days

Day: 14.5 Hours

Environment

Temp: -187 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 65,337,779 km

• M1: 157,975 km (0.096 R)
• M2: 608,115 km (0.095 R)
• M3: 1,237,174 km (0.114 R)
• M4: 2,759,632 km (0.086 R)
• M5: 3,473,513 km (0.112 R)
• M6: 4,544,933 km (0.111 R)
• M7: 5,891,763 km (0.116 R)
• M8: 6,682,088 km (0.06 R)
• M9: 8,850,509 km (0.108 R)
• M10: 11,141,002 km (0.072 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 96.8

Radius: 5.9

Gravity: 2.78 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 5.58 AU - 7.56 AU

Year: 10873 Days

Day: 21.9 Hours

Environment

Temp: -214 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 65,337,779 km

• M1: 73,453 km (0.118 R)
• M2: 268,528 km (0.048 R)
• M3: 484,697 km (0.098 R)
• M4: 715,527 km (0.091 R)
• M5: 1,428,660 km (0.106 R)
• M6: 2,331,333 km (0.106 R)
• M7: 3,285,917 km (0.082 R)
• M8: 4,405,807 km (0.116 R)
• M9: 6,593,825 km (0.037 R)
• M10: 7,885,603 km (0.113 R)
• M11: 10,655,258 km (0.1 R)
• M12: 11,313,788 km (0.118 R)
• M13: 11,584,560 km (0.093 R)
• M14: 16,014,003 km (0.115 R)
• M15: 21,317,697 km (0.075 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 812.2

Radius: 5.4

Gravity: 27.85 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 7.48 AU - 8.36 AU

Year: 14391 Days

Day: 18.7 Hours

Environment

Temp: -228 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 65,337,779 km

• M1: 67,169 km (0.11 R)
• M2: 293,960 km (0.12 R)
• M3: 1,991,746 km (0.065 R)
• M4: 2,495,891 km (0.107 R)
• M5: 3,528,715 km (0.104 R)
• M6: 4,295,404 km (0.075 R)
• M7: 4,552,263 km (0.067 R)
• M8: 5,275,419 km (0.079 R)
• M9: 6,232,995 km (0.075 R)
• M10: 6,437,496 km (0.069 R)
• M11: 6,688,970 km (0.112 R)
• M12: 6,860,259 km (0.11 R)
• M13: 7,620,964 km (0.089 R)
• M14: 9,150,603 km (0.039 R)
• M15: 11,051,393 km (0.097 R)
• M16: 14,302,005 km (0.054 R)
• M17: 15,389,133 km (0.091 R)
• M18: 19,759,036 km (0.077 R)
• M19: 20,023,525 km (0.083 R)
• M20: 22,415,895 km (0.098 R)
• M21: 22,800,062 km (0.104 R)
• M22: 23,188,717 km (0.107 R)
• M23: 23,581,711 km (0.091 R)
• M24: 23,879,411 km (0.091 R)
• M25: 26,564,842 km (0.082 R)
• M26: 30,606,079 km (0.061 R)
• M27: 43,196,834 km (0.099 R)
• M28: 45,916,822 km (0.082 R)
• M29: 47,161,626 km (0.109 R)
• M30: 48,428,571 km (0.115 R)
• M31: 51,528,538 km (0.118 R)
• M32: 52,872,375 km (0.072 R)
• M33: 53,211,963 km (0.1 R)
• M34: 54,758,057 km (0.028 R)
• M35: 56,688,168 km (0.051 R)
• M36: 61,993,058 km (0.097 R)
• M37: 64,668,467 km (0.079 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 235.7

Radius: 5.5

Gravity: 7.79 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 8.73 AU - 11.15 AU

Year: 20235 Days

Day: 20.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 65,337,779 km

• M1: 68,366 km (0.101 R)
• M2: 253,120 km (0.115 R)
• M3: 466,297 km (0.117 R)
• M4: 801,097 km (0.11 R)
• M5: 1,078,451 km (0.086 R)
• M6: 1,517,371 km (0.108 R)
• M7: 2,068,041 km (0.11 R)
• M8: 2,990,013 km (0.084 R)
• M9: 4,395,036 km (0.047 R)
• M10: 5,640,139 km (0.047 R)
• M11: 7,145,393 km (0.07 R)
• M12: 8,708,092 km (0.109 R)
• M13: 11,090,289 km (0.069 R)
• M14: 12,369,799 km (0.045 R)
• M15: 14,402,086 km (0.084 R)
• M16: 17,242,202 km (0.078 R)
• M17: 20,945,347 km (0.112 R)
• M18: 21,464,452 km (0.073 R)
• M19: 22,438,185 km (0.05 R)
• M20: 25,929,500 km (0.028 R)
• M21: 30,754,031 km (0.113 R)
• M22: 30,976,333 km (0.108 R)
• M23: 39,714,944 km (0.113 R)
• M24: 40,243,473 km (0.062 R)
• M25: 42,818,651 km (0.085 R)
• M26: 43,235,131 km (0.096 R)
• M27: 49,503,880 km (0.097 R)
• M28: 53,413,172 km (0.065 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 396.8

Radius: 7.3

Gravity: 7.45 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 8.7 AU - 11.62 AU

Year: 20910 Days

Day: 18.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 65,337,779 km

• M1: 99,931 km (0.05 R)
• M2: 795,113 km (0.108 R)
• M3: 1,870,123 km (0.081 R)
• M4: 5,206,305 km (0.102 R)
• M5: 8,344,868 km (0.112 R)
• M6: 18,934,453 km (0.091 R)
• M7: 20,157,266 km (0.079 R)
• M8: 23,148,625 km (0.04 R)
• M9: 30,579,899 km (0.084 R)
• M10: 32,628,044 km (0.028 R)
• M11: 36,197,598 km (0.066 R)
• M12: 38,624,973 km (0.097 R)
• M13: 40,444,084 km (0.057 R)
• M14: 52,572,731 km (0.111 R)
• M15: 53,766,672 km (0.029 R)
• M16: 54,804,432 km (0.104 R)
• M17: 56,563,553 km (0.11 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 486 - 18,949 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit