🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 240.1

Radius: 8.9

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.44 AU - 0.68 AU

Year: 289 Days

Day: 13.7 Hours

Environment

Temp: -153 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 66,911,055 km

• M1: 110,702 km (0.109 R)
• M2: 446,400 km (0.107 R)
• M3: 798,105 km (0.089 R)
• M4: 1,156,092 km (0.109 R)
• M5: 1,631,963 km (0.116 R)
• M6: 2,120,999 km (0.071 R)
• M7: 2,671,968 km (0.114 R)
• M8: 2,968,620 km (0.105 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 470

Radius: 11.3

Gravity: 3.68 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 0.58 AU - 0.62 AU

Year: 321 Days

Day: 10.8 Hours

Environment

Temp: -159 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 66,911,055 km

• M1: 140,622 km (0.034 R)
• M2: 638,185 km (0.091 R)
• M3: 1,212,491 km (0.085 R)
• M4: 1,586,934 km (0.113 R)
• M5: 2,144,934 km (0.107 R)
• M6: 2,543,613 km (0.107 R)
• M7: 2,982,383 km (0.072 R)
• M8: 3,428,783 km (0.12 R)
• M9: 3,815,494 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 231.9

Radius: 9.6

Gravity: 2.52 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.73 AU - 1.09 AU

Year: 599 Days

Day: 11.1 Hours

Environment

Temp: -167 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 66,911,055 km

• M1: 119,977 km (0.114 R)
• M2: 577,747 km (0.103 R)
• M3: 982,708 km (0.087 R)
• M4: 1,622,090 km (0.079 R)
• M5: 2,062,955 km (0.087 R)
• M6: 2,373,669 km (0.102 R)
• M7: 3,884,309 km (0.102 R)
• M8: 4,203,251 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 255.9

Radius: 14.9

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 1.08 AU - 1.44 AU

Year: 976 Days

Day: 14.3 Hours

Environment

Temp: -178 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 66,911,055 km

• M1: 185,352 km (0.108 R)
• M2: 852,857 km (0.102 R)
• M3: 1,346,530 km (0.116 R)
• M4: 1,820,606 km (0.086 R)
• M5: 2,428,422 km (0.098 R)
• M6: 3,267,816 km (0.112 R)
• M7: 4,061,433 km (0.103 R)
• M8: 4,931,793 km (0.08 R)
• M9: 6,596,219 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 580.1

Radius: 8.4

Gravity: 8.22 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 1.49 AU - 1.61 AU

Year: 1332 Days

Day: 8.4 Hours

Environment

Temp: -192 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 66,911,055 km

• M1: 104,419 km (0.113 R)
• M2: 446,998 km (0.092 R)
• M3: 727,644 km (0.112 R)
• M4: 1,179,878 km (0.091 R)
• M5: 1,543,700 km (0.069 R)
• M6: 1,930,112 km (0.074 R)
• M7: 3,353,835 km (0.099 R)
• M8: 3,790,660 km (0.112 R)
• M9: 4,074,148 km (0.108 R)
• M10: 4,407,752 km (0.098 R)
• M11: 4,951,989 km (0.072 R)
• M12: 6,450,959 km (0.038 R)
• M13: 8,622,372 km (0.119 R)
• M14: 9,114,849 km (0.112 R)
• M15: 9,595,357 km (0.091 R)
• M16: 10,155,900 km (0.085 R)
• M17: 11,071,140 km (0.055 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 134.5

Radius: 9.1

Gravity: 1.62 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 1.6 AU - 2.44 AU

Year: 1982 Days

Day: 6.1 Hours

Environment

Temp: -191 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 66,911,055 km

• M1: 115,789 km (0.111 R)
• M2: 487,390 km (0.062 R)
• M3: 994,527 km (0.069 R)
• M4: 1,901,239 km (0.119 R)
• M5: 2,397,455 km (0.07 R)
• M6: 2,778,780 km (0.105 R)
• M7: 3,768,071 km (0.104 R)
• M8: 4,434,829 km (0.109 R)
• M9: 5,798,563 km (0.107 R)
• M10: 6,888,683 km (0.091 R)
• M11: 8,599,933 km (0.115 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 583.7

Radius: 3.4

Gravity: 50.49 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 6.24 AU - 8.28 AU

Year: 13503 Days

Day: 22.4 Hours

Environment

Temp: -238 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 66,911,055 km

• M1: 42,336 km (0.072 R)
• M2: 155,881 km (0.109 R)
• M3: 296,054 km (0.061 R)
• M4: 563,386 km (0.092 R)
• M5: 780,751 km (0.066 R)
• M6: 1,260,063 km (0.095 R)
• M7: 1,585,438 km (0.085 R)
• M8: 1,859,950 km (0.12 R)
• M9: 1,999,824 km (0.116 R)
• M10: 2,146,580 km (0.074 R)
• M11: 4,608,362 km (0.086 R)
• M12: 5,371,611 km (0.088 R)
• M13: 5,875,456 km (0.088 R)
• M14: 6,215,492 km (0.099 R)
• M15: 7,102,009 km (0.099 R)
• M16: 8,825,826 km (0.065 R)
• M17: 10,978,090 km (0.092 R)
• M18: 11,904,999 km (0.12 R)
• M19: 12,448,637 km (0.094 R)
• M20: 14,789,545 km (0.037 R)
• M21: 15,774,048 km (0.085 R)
• M22: 16,726,388 km (0.106 R)
• M23: 16,876,285 km (0.086 R)
• M24: 19,812,892 km (0.11 R)
• M25: 20,833,747 km (0.11 R)
• M26: 22,887,726 km (0.087 R)
• M27: 23,726,821 km (0.042 R)
• M28: 26,164,967 km (0.058 R)
• M29: 39,280,810 km (0.084 R)
• M30: 45,970,229 km (0.086 R)
• M31: 50,514,414 km (0.095 R)
• M32: 53,704,439 km (0.082 R)
• M33: 55,182,915 km (0.063 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 908.7

Radius: 5.7

Gravity: 27.97 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 7.51 AU - 7.59 AU

Year: 14320 Days

Day: 18.6 Hours

Environment

Temp: -233 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 66,911,055 km

• M1: 71,059 km (0.111 R)
• M2: 266,284 km (0.108 R)
• M3: 655,239 km (0.08 R)
• M4: 894,745 km (0.043 R)
• M5: 1,218,774 km (0.057 R)
• M6: 3,511,810 km (0.067 R)
• M7: 4,158,970 km (0.082 R)
• M8: 4,348,661 km (0.111 R)
• M9: 4,577,246 km (0.099 R)
• M10: 4,848,168 km (0.083 R)
• M11: 6,662,042 km (0.111 R)
• M12: 8,679,070 km (0.106 R)
• M13: 9,147,611 km (0.071 R)
• M14: 9,523,400 km (0.115 R)
• M15: 9,853,862 km (0.102 R)
• M16: 15,467,223 km (0.11 R)
• M17: 16,704,547 km (0.11 R)
• M18: 17,428,900 km (0.112 R)
• M19: 21,460,712 km (0.091 R)
• M20: 25,122,868 km (0.057 R)
• M21: 25,859,787 km (0.1 R)
• M22: 28,495,253 km (0.081 R)
• M23: 31,304,551 km (0.051 R)
• M24: 33,276,550 km (0.059 R)
• M25: 42,882,230 km (0.113 R)
• M26: 47,829,282 km (0.096 R)
• M27: 53,488,120 km (0.084 R)
• M28: 57,377,964 km (0.061 R)
• M29: 60,885,585 km (0.105 R)
• M30: 61,074,079 km (0.087 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 437 - 11,088 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit