🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.61 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 165.5

Radius: 11.5

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.99 AU - 1.45 AU

Year: 857 Days

Day: 6.2 Hours

Environment

Temp: -163 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 74,400,555 km

• M1: 143,016 km (0.061 R)
• M2: 535,860 km (0.079 R)
• M3: 915,988 km (0.09 R)
• M4: 1,459,327 km (0.082 R)
• M5: 2,445,476 km (0.115 R)
• M6: 2,901,451 km (0.1 R)
• M7: 3,569,555 km (0.06 R)
• M8: 3,986,334 km (0.045 R)
• M9: 4,964,405 km (0.114 R)
• M10: 5,785,099 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 130.9

Radius: 12.4

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 1.45 AU - 1.85 AU

Year: 1348 Days

Day: 7.5 Hours

Environment

Temp: -176 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 74,400,555 km

• M1: 154,235 km (0.119 R)
• M2: 658,231 km (0.104 R)
• M3: 1,428,510 km (0.096 R)
• M4: 2,805,259 km (0.118 R)
• M5: 4,128,004 km (0.079 R)
• M6: 5,027,685 km (0.111 R)
• M7: 6,616,714 km (0.065 R)
• M8: 7,214,507 km (0.09 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 685.3

Radius: 13.5

Gravity: 3.76 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 2.05 AU - 2.33 AU

Year: 2061 Days

Day: 11.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 74,400,555 km

• M1: 169,345 km (0.032 R)
• M2: 695,331 km (0.11 R)
• M3: 1,134,999 km (0.102 R)
• M4: 1,568,683 km (0.111 R)
• M5: 1,998,927 km (0.12 R)
• M6: 2,746,168 km (0.032 R)
• M7: 4,210,133 km (0.094 R)
• M8: 5,702,222 km (0.106 R)
• M9: 6,661,892 km (0.111 R)
• M10: 7,994,809 km (0.056 R)
• M11: 9,566,634 km (0.05 R)
• M12: 10,051,481 km (0.118 R)
• M13: 12,480,950 km (0.072 R)
• M14: 14,862,249 km (0.095 R)
• M15: 16,379,620 km (0.072 R)

Planet 4 - Ice Giant

Semi-Major Axis: 6.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 477.1

Radius: 3.8

Gravity: 33.04 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 5.43 AU - 7.77 AU

Year: 10781 Days

Day: 20 Hours

Environment

Temp: -230 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 74,400,555 km

• M1: 85,570 km (0.119 R)
• M2: 358,137 km (0.07 R)
• M3: 711,637 km (0.087 R)
• M4: 868,416 km (0.11 R)
• M5: 1,325,886 km (0.106 R)
• M6: 1,495,829 km (0.106 R)
• M7: 1,863,840 km (0.081 R)
• M8: 2,593,877 km (0.111 R)
• M9: 2,968,022 km (0.095 R)
• M10: 3,190,923 km (0.08 R)
• M11: 4,033,009 km (0.067 R)
• M12: 5,297,410 km (0.086 R)
• M13: 5,658,988 km (0.116 R)
• M14: 6,001,717 km (0.091 R)
• M15: 7,231,411 km (0.03 R)
• M16: 7,593,887 km (0.098 R)
• M17: 8,355,041 km (0.059 R)
• M18: 10,276,327 km (0.107 R)
• M19: 10,528,997 km (0.08 R)
• M20: 11,855,482 km (0.091 R)
• M21: 13,832,717 km (0.094 R)
• M22: 17,336,000 km (0.084 R)
• M23: 17,622,031 km (0.087 R)
• M24: 18,130,364 km (0.105 R)
• M25: 18,648,422 km (0.112 R)
• M26: 20,182,847 km (0.094 R)
• M27: 22,216,780 km (0.057 R)
• M28: 25,933,988 km (0.083 R)
• M29: 27,452,705 km (0.057 R)
• M30: 28,233,756 km (0.114 R)
• M31: 31,294,977 km (0.099 R)
• M32: 31,612,723 km (0.079 R)
• M33: 32,687,584 km (0.061 R)
• M34: 33,014,604 km (0.106 R)
• M35: 33,675,528 km (0.106 R)
• M36: 33,897,681 km (0.092 R)
• M37: 41,281,383 km (0.083 R)
• M38: 43,478,377 km (0.092 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 86

Radius: 4

Gravity: 5.38 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 7.34 AU - 8.1 AU

Year: 13638 Days

Day: 21.1 Hours

Environment

Temp: -233 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 74,400,555 km

• M1: 153,188 km (0.069 R)
• M2: 2,525,810 km (0.106 R)
• M3: 4,846,223 km (0.113 R)
• M4: 6,446,621 km (0.093 R)
• M5: 8,952,236 km (0.058 R)
• M6: 10,113,863 km (0.079 R)
• M7: 11,894,078 km (0.075 R)
• M8: 16,060,528 km (0.101 R)
• M9: 22,328,829 km (0.097 R)
• M10: 23,371,825 km (0.073 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 936.2

Radius: 5.9

Gravity: 26.89 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 8.16 AU - 9.4 AU

Year: 16542 Days

Day: 20.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 74,400,555 km

• M1: 73,453 km (0.102 R)
• M2: 324,179 km (0.118 R)
• M3: 514,168 km (0.116 R)
• M4: 1,025,793 km (0.106 R)
• M5: 1,291,329 km (0.101 R)
• M6: 1,488,200 km (0.06 R)
• M7: 2,309,193 km (0.069 R)
• M8: 2,768,757 km (0.028 R)
• M9: 3,046,561 km (0.116 R)
• M10: 3,747,427 km (0.106 R)
• M11: 4,151,790 km (0.088 R)
• M12: 4,482,401 km (0.076 R)
• M13: 5,619,494 km (0.107 R)
• M14: 7,741,091 km (0.109 R)
• M15: 11,014,143 km (0.111 R)
• M16: 21,345,223 km (0.073 R)
• M17: 21,734,925 km (0.093 R)
• M18: 22,328,230 km (0.088 R)
• M19: 23,238,683 km (0.117 R)
• M20: 23,650,975 km (0.091 R)
• M21: 26,117,843 km (0.097 R)
• M22: 28,632,883 km (0.105 R)
• M23: 32,061,516 km (0.076 R)
• M24: 37,279,041 km (0.082 R)
• M25: 43,813,476 km (0.109 R)
• M26: 46,693,086 km (0.062 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 431 - 12,344 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit