🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 46.1

Radius: 10.9

Gravity: 0.39 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.59 AU - 0.85 AU

Year: 394 Days

Day: 13.2 Hours

Environment

Temp: -140 °C

Axial Tilt: 42.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (2)

Outer Limit: 18,121,693 km

• M1: 135,685 km (0.055 R)
• M2: 582,983 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 660.3

Radius: 10.2

Gravity: 6.35 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.77 AU - 0.79 AU

Year: 445 Days

Day: 8.1 Hours

Environment

Temp: -148 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 18,121,693 km

• M1: 126,859 km (0.115 R)
• M2: 586,124 km (0.055 R)
• M3: 1,073,664 km (0.065 R)
• M4: 1,479,972 km (0.113 R)
• M5: 2,503,371 km (0.112 R)
• M6: 3,150,232 km (0.086 R)
• M7: 3,489,221 km (0.052 R)
• M8: 4,010,569 km (0.082 R)
• M9: 4,716,073 km (0.11 R)
• M10: 5,177,732 km (0.09 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 90.6

Radius: 14.4

Gravity: 0.44 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 2 AU - 2.48 AU

Year: 2165 Days

Day: 14.1 Hours

Environment

Temp: -198 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 18,121,693 km

• M1: 179,069 km (0.094 R)
• M2: 850,613 km (0.062 R)
• M3: 1,427,164 km (0.112 R)
• M4: 2,891,128 km (0.05 R)
• M5: 3,358,472 km (0.066 R)
• M6: 3,817,887 km (0.111 R)
• M7: 4,611,803 km (0.036 R)
• M8: 5,164,717 km (0.103 R)
• M9: 5,917,942 km (0.07 R)
• M10: 6,851,882 km (0.09 R)
• M11: 7,366,050 km (0.076 R)
• M12: 8,778,702 km (0.066 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 933

Radius: 14.4

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 2 AU - 2.74 AU

Year: 2356 Days

Day: 14.5 Hours

Environment

Temp: -203 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 18,121,693 km

• M1: 179,368 km (0.098 R)
• M2: 658,979 km (0.115 R)
• M3: 1,503,608 km (0.056 R)
• M4: 2,224,969 km (0.038 R)
• M5: 2,812,590 km (0.077 R)
• M6: 3,324,663 km (0.063 R)
• M7: 4,474,772 km (0.036 R)
• M8: 5,059,849 km (0.114 R)
• M9: 5,746,802 km (0.093 R)
• M10: 6,806,853 km (0.115 R)
• M11: 7,490,964 km (0.096 R)
• M12: 7,993,613 km (0.103 R)
• M13: 8,552,361 km (0.062 R)
• M14: 9,970,848 km (0.098 R)
• M15: 11,295,537 km (0.091 R)
• M16: 12,000,442 km (0.082 R)
• M17: 13,682,520 km (0.043 R)
• M18: 14,436,045 km (0.079 R)
• M19: 15,068,545 km (0.094 R)
• M20: 19,907,587 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 397.4

Radius: 12.5

Gravity: 2.54 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 2.35 AU - 3.55 AU

Year: 3272 Days

Day: 14.5 Hours

Environment

Temp: -205 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 18,121,693 km

• M1: 155,432 km (0.093 R)
• M2: 738,265 km (0.085 R)
• M3: 1,272,180 km (0.109 R)
• M4: 1,662,631 km (0.071 R)
• M5: 6,695,851 km (0.088 R)
• M6: 7,845,960 km (0.12 R)
• M7: 9,020,452 km (0.065 R)
• M8: 10,012,436 km (0.081 R)
• M9: 11,757,345 km (0.103 R)
• M10: 14,155,399 km (0.083 R)
• M11: 15,006,462 km (0.114 R)
• M12: 15,493,851 km (0.105 R)
• M13: 17,711,341 km (0.112 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 782.9

Radius: 7.8

Gravity: 12.87 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 5.08 AU - 7.14 AU

Year: 9752 Days

Day: 24.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 18,121,693 km

• M1: 96,939 km (0.102 R)
• M2: 429,047 km (0.104 R)
• M3: 687,701 km (0.112 R)
• M4: 1,176,737 km (0.044 R)
• M5: 1,619,696 km (0.094 R)
• M6: 2,690,817 km (0.119 R)
• M7: 3,953,273 km (0.084 R)
• M8: 4,431,239 km (0.047 R)
• M9: 7,012,849 km (0.06 R)
• M10: 10,249,997 km (0.116 R)
• M11: 13,051,068 km (0.088 R)
• M12: 19,152,417 km (0.107 R)
• M13: 23,348,338 km (0.075 R)
• M14: 24,531,807 km (0.075 R)
• M15: 25,659,476 km (0.056 R)
• M16: 27,615,019 km (0.096 R)
• M17: 32,709,425 km (0.052 R)
• M18: 35,005,303 km (0.088 R)
• M19: 40,689,274 km (0.054 R)
• M20: 49,282,176 km (0.052 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 22

Radius: 7.9

Gravity: 0.35 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 5.67 AU - 9.11 AU

Year: 12971 Days

Day: 20.1 Hours

Environment

Temp: -217 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 18,121,693 km

• M1: 265,087 km (0.071 R)
• M2: 519,853 km (0.095 R)
• M3: 967,449 km (0.119 R)
• M4: 1,531,284 km (0.104 R)
• M5: 1,898,696 km (0.049 R)
• M6: 2,691,415 km (0.097 R)
• M7: 3,096,826 km (0.062 R)
• M8: 7,080,916 km (0.111 R)
• M9: 11,245,272 km (0.039 R)
• M10: 12,676,176 km (0.087 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 201 - 19,306 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit